Home / 12,974.48-17,909.16-9,000.86

Finding the Fourth Proportional to 12,974.48, 17,909.16 and 9,000.86

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Solution

The fourth proportional to 12,974.48, 17,909.16 and 9,000.86 is: 12,424.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.48 : 17,909.16 = 9,000.86 : x
  2. Step 2: Convert to fraction form
    12,974.48/17,909.16 = 9,000.86/x
  3. Step 3: Cross multiply
    12,974.48x = 17,909.16 × 9,000.86
  4. Step 4: Simplify right side
    12,974.48x = 161,197,841.88
  5. Step 5: Solve for x
    x = 161,197,841.88/12,974.48
  6. Step 6: Final answer
    x = 12,424.22

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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.