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Finding the Fourth Proportional to 15,223.13, 21,007.92 and 9,253.68

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Solution

The fourth proportional to 15,223.13, 21,007.92 and 9,253.68 is: 12,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223.13 : 21,007.92 = 9,253.68 : x
  2. Step 2: Convert to fraction form
    15,223.13/21,007.92 = 9,253.68/x
  3. Step 3: Cross multiply
    15,223.13x = 21,007.92 × 9,253.68
  4. Step 4: Simplify right side
    15,223.13x = 194,400,569.15
  5. Step 5: Solve for x
    x = 194,400,569.15/15,223.13
  6. Step 6: Final answer
    x = 12,770.08

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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.