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Finding the Fourth Proportional to 19,687.62, 29,522.77 and 7,204.40

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Solution

The fourth proportional to 19,687.62, 29,522.77 and 7,204.40 is: 10,803.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.62 : 29,522.77 = 7,204.40 : x
  2. Step 2: Convert to fraction form
    19,687.62/29,522.77 = 7,204.40/x
  3. Step 3: Cross multiply
    19,687.62x = 29,522.77 × 7,204.40
  4. Step 4: Simplify right side
    19,687.62x = 212,693,808.17
  5. Step 5: Solve for x
    x = 212,693,808.17/19,687.62
  6. Step 6: Final answer
    x = 10,803.43

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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.