Home / 12,717.12-17,555.76-8,475.24

Finding the Fourth Proportional to 12,717.12, 17,555.76 and 8,475.24

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Solution

The fourth proportional to 12,717.12, 17,555.76 and 8,475.24 is: 11,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.12 : 17,555.76 = 8,475.24 : x
  2. Step 2: Convert to fraction form
    12,717.12/17,555.76 = 8,475.24/x
  3. Step 3: Cross multiply
    12,717.12x = 17,555.76 × 8,475.24
  4. Step 4: Simplify right side
    12,717.12x = 148,789,279.38
  5. Step 5: Solve for x
    x = 148,789,279.38/12,717.12
  6. Step 6: Final answer
    x = 11,699.92

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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.