Home / 13,154.46-18,153.55-7,186.23

Finding the Fourth Proportional to 13,154.46, 18,153.55 and 7,186.23

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Solution

The fourth proportional to 13,154.46, 18,153.55 and 7,186.23 is: 9,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.46 : 18,153.55 = 7,186.23 : x
  2. Step 2: Convert to fraction form
    13,154.46/18,153.55 = 7,186.23/x
  3. Step 3: Cross multiply
    13,154.46x = 18,153.55 × 7,186.23
  4. Step 4: Simplify right side
    13,154.46x = 130,455,585.62
  5. Step 5: Solve for x
    x = 130,455,585.62/13,154.46
  6. Step 6: Final answer
    x = 9,917.21

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Half scale
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Double scale
Find fourth proportional to 13,155.46, 18,154.93 and 7,187.23
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.