Home / 15,572.76-21,490.47-8,499.35

Finding the Fourth Proportional to 15,572.76, 21,490.47 and 8,499.35

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Solution

The fourth proportional to 15,572.76, 21,490.47 and 8,499.35 is: 11,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.76 : 21,490.47 = 8,499.35 : x
  2. Step 2: Convert to fraction form
    15,572.76/21,490.47 = 8,499.35/x
  3. Step 3: Cross multiply
    15,572.76x = 21,490.47 × 8,499.35
  4. Step 4: Simplify right side
    15,572.76x = 182,654,918.74
  5. Step 5: Solve for x
    x = 182,654,918.74/15,572.76
  6. Step 6: Final answer
    x = 11,729.13

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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.