Home / 12,387.52-18,580.56-9,059.14

Finding the Fourth Proportional to 12,387.52, 18,580.56 and 9,059.14

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Solution

The fourth proportional to 12,387.52, 18,580.56 and 9,059.14 is: 13,588.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.52 : 18,580.56 = 9,059.14 : x
  2. Step 2: Convert to fraction form
    12,387.52/18,580.56 = 9,059.14/x
  3. Step 3: Cross multiply
    12,387.52x = 18,580.56 × 9,059.14
  4. Step 4: Simplify right side
    12,387.52x = 168,323,894.32
  5. Step 5: Solve for x
    x = 168,323,894.32/12,387.52
  6. Step 6: Final answer
    x = 13,588.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.