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Finding the Fourth Proportional to 15,224.52, 21,016.31 and 9,258.11

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Solution

The fourth proportional to 15,224.52, 21,016.31 and 9,258.11 is: 12,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,224.52 : 21,016.31 = 9,258.11 : x
  2. Step 2: Convert to fraction form
    15,224.52/21,016.31 = 9,258.11/x
  3. Step 3: Cross multiply
    15,224.52x = 21,016.31 × 9,258.11
  4. Step 4: Simplify right side
    15,224.52x = 194,571,158.40
  5. Step 5: Solve for x
    x = 194,571,158.40/15,224.52
  6. Step 6: Final answer
    x = 12,780.12

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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.