Home / 8,691.47-13,037.06-2,117.64

Finding the Fourth Proportional to 8,691.47, 13,037.06 and 2,117.64

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Solution

The fourth proportional to 8,691.47, 13,037.06 and 2,117.64 is: 3,176.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.47 : 13,037.06 = 2,117.64 : x
  2. Step 2: Convert to fraction form
    8,691.47/13,037.06 = 2,117.64/x
  3. Step 3: Cross multiply
    8,691.47x = 13,037.06 × 2,117.64
  4. Step 4: Simplify right side
    8,691.47x = 27,607,799.74
  5. Step 5: Solve for x
    x = 27,607,799.74/8,691.47
  6. Step 6: Final answer
    x = 3,176.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.