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Finding the Fourth Proportional to 19,597.70, 29,374.68 and 8,487.74

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Solution

The fourth proportional to 19,597.70, 29,374.68 and 8,487.74 is: 12,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,597.70 : 29,374.68 = 8,487.74 : x
  2. Step 2: Convert to fraction form
    19,597.70/29,374.68 = 8,487.74/x
  3. Step 3: Cross multiply
    19,597.70x = 29,374.68 × 8,487.74
  4. Step 4: Simplify right side
    19,597.70x = 249,324,646.42
  5. Step 5: Solve for x
    x = 249,324,646.42/19,597.70
  6. Step 6: Final answer
    x = 12,722.14

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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.