Home / 12,377.64-18,566.45-4,478.31

Finding the Fourth Proportional to 12,377.64, 18,566.45 and 4,478.31

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Solution

The fourth proportional to 12,377.64, 18,566.45 and 4,478.31 is: 6,717.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.64 : 18,566.45 = 4,478.31 : x
  2. Step 2: Convert to fraction form
    12,377.64/18,566.45 = 4,478.31/x
  3. Step 3: Cross multiply
    12,377.64x = 18,566.45 × 4,478.31
  4. Step 4: Simplify right side
    12,377.64x = 83,146,318.70
  5. Step 5: Solve for x
    x = 83,146,318.70/12,377.64
  6. Step 6: Final answer
    x = 6,717.46

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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.