Home / 13,150.12-18,135.15-10,279.23

Finding the Fourth Proportional to 13,150.12, 18,135.15 and 10,279.23

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Solution

The fourth proportional to 13,150.12, 18,135.15 and 10,279.23 is: 14,175.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.12 : 18,135.15 = 10,279.23 : x
  2. Step 2: Convert to fraction form
    13,150.12/18,135.15 = 10,279.23/x
  3. Step 3: Cross multiply
    13,150.12x = 18,135.15 × 10,279.23
  4. Step 4: Simplify right side
    13,150.12x = 186,415,281.20
  5. Step 5: Solve for x
    x = 186,415,281.20/13,150.12
  6. Step 6: Final answer
    x = 14,175.94

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Half scale
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Double scale
Find fourth proportional to 13,151.12, 18,136.52 and 10,280.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.