Home / 8,937.66-12,331.46-7,043.36

Finding the Fourth Proportional to 8,937.66, 12,331.46 and 7,043.36

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Solution

The fourth proportional to 8,937.66, 12,331.46 and 7,043.36 is: 9,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.66 : 12,331.46 = 7,043.36 : x
  2. Step 2: Convert to fraction form
    8,937.66/12,331.46 = 7,043.36/x
  3. Step 3: Cross multiply
    8,937.66x = 12,331.46 × 7,043.36
  4. Step 4: Simplify right side
    8,937.66x = 86,854,937.42
  5. Step 5: Solve for x
    x = 86,854,937.42/8,937.66
  6. Step 6: Final answer
    x = 9,717.86

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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.