Home / 8,761.47-12,089.40-5,175.93

Finding the Fourth Proportional to 8,761.47, 12,089.40 and 5,175.93

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Solution

The fourth proportional to 8,761.47, 12,089.40 and 5,175.93 is: 7,141.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.47 : 12,089.40 = 5,175.93 : x
  2. Step 2: Convert to fraction form
    8,761.47/12,089.40 = 5,175.93/x
  3. Step 3: Cross multiply
    8,761.47x = 12,089.40 × 5,175.93
  4. Step 4: Simplify right side
    8,761.47x = 62,573,875.18
  5. Step 5: Solve for x
    x = 62,573,875.18/8,761.47
  6. Step 6: Final answer
    x = 7,141.94

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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.