Home / 12,740.17-17,577.20-7,702.48

Finding the Fourth Proportional to 12,740.17, 17,577.20 and 7,702.48

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Solution

The fourth proportional to 12,740.17, 17,577.20 and 7,702.48 is: 10,626.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.17 : 17,577.20 = 7,702.48 : x
  2. Step 2: Convert to fraction form
    12,740.17/17,577.20 = 7,702.48/x
  3. Step 3: Cross multiply
    12,740.17x = 17,577.20 × 7,702.48
  4. Step 4: Simplify right side
    12,740.17x = 135,388,031.46
  5. Step 5: Solve for x
    x = 135,388,031.46/12,740.17
  6. Step 6: Final answer
    x = 10,626.86

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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.