Home / 10,126.62-13,979.16-6,148.98

Finding the Fourth Proportional to 10,126.62, 13,979.16 and 6,148.98

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Solution

The fourth proportional to 10,126.62, 13,979.16 and 6,148.98 is: 8,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.62 : 13,979.16 = 6,148.98 : x
  2. Step 2: Convert to fraction form
    10,126.62/13,979.16 = 6,148.98/x
  3. Step 3: Cross multiply
    10,126.62x = 13,979.16 × 6,148.98
  4. Step 4: Simplify right side
    10,126.62x = 85,957,575.26
  5. Step 5: Solve for x
    x = 85,957,575.26/10,126.62
  6. Step 6: Final answer
    x = 8,488.28

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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.