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Finding the Fourth Proportional to 14,998, 20,697.24 and 8,710.78

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Solution

The fourth proportional to 14,998, 20,697.24 and 8,710.78 is: 12,020.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,998 : 20,697.24 = 8,710.78 : x
  2. Step 2: Convert to fraction form
    14,998/20,697.24 = 8,710.78/x
  3. Step 3: Cross multiply
    14,998x = 20,697.24 × 8,710.78
  4. Step 4: Simplify right side
    14,998x = 180,289,104.25
  5. Step 5: Solve for x
    x = 180,289,104.25/14,998
  6. Step 6: Final answer
    x = 12,020.88

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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.