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Finding the Fourth Proportional to 15,259.74, 21,060.18 and 9,294.90

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Solution

The fourth proportional to 15,259.74, 21,060.18 and 9,294.90 is: 12,828.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,259.74 : 21,060.18 = 9,294.90 : x
  2. Step 2: Convert to fraction form
    15,259.74/21,060.18 = 9,294.90/x
  3. Step 3: Cross multiply
    15,259.74x = 21,060.18 × 9,294.90
  4. Step 4: Simplify right side
    15,259.74x = 195,752,267.08
  5. Step 5: Solve for x
    x = 195,752,267.08/15,259.74
  6. Step 6: Final answer
    x = 12,828.02

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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.