Home / 15,459.29-21,332.60-9,086.12

Finding the Fourth Proportional to 15,459.29, 21,332.60 and 9,086.12

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Solution

The fourth proportional to 15,459.29, 21,332.60 and 9,086.12 is: 12,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.29 : 21,332.60 = 9,086.12 : x
  2. Step 2: Convert to fraction form
    15,459.29/21,332.60 = 9,086.12/x
  3. Step 3: Cross multiply
    15,459.29x = 21,332.60 × 9,086.12
  4. Step 4: Simplify right side
    15,459.29x = 193,830,465.49
  5. Step 5: Solve for x
    x = 193,830,465.49/15,459.29
  6. Step 6: Final answer
    x = 12,538.12

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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.