Home / 12,640.08-17,437.92-7,604.24

Finding the Fourth Proportional to 12,640.08, 17,437.92 and 7,604.24

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Solution

The fourth proportional to 12,640.08, 17,437.92 and 7,604.24 is: 10,490.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640.08 : 17,437.92 = 7,604.24 : x
  2. Step 2: Convert to fraction form
    12,640.08/17,437.92 = 7,604.24/x
  3. Step 3: Cross multiply
    12,640.08x = 17,437.92 × 7,604.24
  4. Step 4: Simplify right side
    12,640.08x = 132,602,128.78
  5. Step 5: Solve for x
    x = 132,602,128.78/12,640.08
  6. Step 6: Final answer
    x = 10,490.61

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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.