Home / 13,193.08-18,206.44-7,225.12

Finding the Fourth Proportional to 13,193.08, 18,206.44 and 7,225.12

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Solution

The fourth proportional to 13,193.08, 18,206.44 and 7,225.12 is: 9,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.08 : 18,206.44 = 7,225.12 : x
  2. Step 2: Convert to fraction form
    13,193.08/18,206.44 = 7,225.12/x
  3. Step 3: Cross multiply
    13,193.08x = 18,206.44 × 7,225.12
  4. Step 4: Simplify right side
    13,193.08x = 131,543,713.77
  5. Step 5: Solve for x
    x = 131,543,713.77/13,193.08
  6. Step 6: Final answer
    x = 9,970.66

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Half scale
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Double scale
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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.