Home / 12,445.46-17,174.24-6,780.11

Finding the Fourth Proportional to 12,445.46, 17,174.24 and 6,780.11

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Solution

The fourth proportional to 12,445.46, 17,174.24 and 6,780.11 is: 9,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.46 : 17,174.24 = 6,780.11 : x
  2. Step 2: Convert to fraction form
    12,445.46/17,174.24 = 6,780.11/x
  3. Step 3: Cross multiply
    12,445.46x = 17,174.24 × 6,780.11
  4. Step 4: Simplify right side
    12,445.46x = 116,443,116.59
  5. Step 5: Solve for x
    x = 116,443,116.59/12,445.46
  6. Step 6: Final answer
    x = 9,356.28

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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.