Home / 15,314.57-21,132.60-8,598.66

Finding the Fourth Proportional to 15,314.57, 21,132.60 and 8,598.66

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Solution

The fourth proportional to 15,314.57, 21,132.60 and 8,598.66 is: 11,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.57 : 21,132.60 = 8,598.66 : x
  2. Step 2: Convert to fraction form
    15,314.57/21,132.60 = 8,598.66/x
  3. Step 3: Cross multiply
    15,314.57x = 21,132.60 × 8,598.66
  4. Step 4: Simplify right side
    15,314.57x = 181,711,930.82
  5. Step 5: Solve for x
    x = 181,711,930.82/15,314.57
  6. Step 6: Final answer
    x = 11,865.30

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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.