Home / 12,440.48-18,654.24-4,642.88

Finding the Fourth Proportional to 12,440.48, 18,654.24 and 4,642.88

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Solution

The fourth proportional to 12,440.48, 18,654.24 and 4,642.88 is: 6,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.48 : 18,654.24 = 4,642.88 : x
  2. Step 2: Convert to fraction form
    12,440.48/18,654.24 = 4,642.88/x
  3. Step 3: Cross multiply
    12,440.48x = 18,654.24 × 4,642.88
  4. Step 4: Simplify right side
    12,440.48x = 86,609,397.81
  5. Step 5: Solve for x
    x = 86,609,397.81/12,440.48
  6. Step 6: Final answer
    x = 6,961.90

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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.