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Finding the Fourth Proportional to 14,294.90, 19,729.50 and 8,985.62

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Solution

The fourth proportional to 14,294.90, 19,729.50 and 8,985.62 is: 12,401.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,294.90 : 19,729.50 = 8,985.62 : x
  2. Step 2: Convert to fraction form
    14,294.90/19,729.50 = 8,985.62/x
  3. Step 3: Cross multiply
    14,294.90x = 19,729.50 × 8,985.62
  4. Step 4: Simplify right side
    14,294.90x = 177,281,789.79
  5. Step 5: Solve for x
    x = 177,281,789.79/14,294.90
  6. Step 6: Final answer
    x = 12,401.75

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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.