Home / 15,680.47-23,522.79-8,285.22

Finding the Fourth Proportional to 15,680.47, 23,522.79 and 8,285.22

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Solution

The fourth proportional to 15,680.47, 23,522.79 and 8,285.22 is: 12,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.47 : 23,522.79 = 8,285.22 : x
  2. Step 2: Convert to fraction form
    15,680.47/23,522.79 = 8,285.22/x
  3. Step 3: Cross multiply
    15,680.47x = 23,522.79 × 8,285.22
  4. Step 4: Simplify right side
    15,680.47x = 194,891,490.16
  5. Step 5: Solve for x
    x = 194,891,490.16/15,680.47
  6. Step 6: Final answer
    x = 12,428.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.