Home / 12,385.14-18,577.50-4,989.41

Finding the Fourth Proportional to 12,385.14, 18,577.50 and 4,989.41

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Solution

The fourth proportional to 12,385.14, 18,577.50 and 4,989.41 is: 7,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.14 : 18,577.50 = 4,989.41 : x
  2. Step 2: Convert to fraction form
    12,385.14/18,577.50 = 4,989.41/x
  3. Step 3: Cross multiply
    12,385.14x = 18,577.50 × 4,989.41
  4. Step 4: Simplify right side
    12,385.14x = 92,690,739.33
  5. Step 5: Solve for x
    x = 92,690,739.33/12,385.14
  6. Step 6: Final answer
    x = 7,484.03

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Double scale
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Similar ratio
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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.