Home / 8,930.47-12,287.82-7,331.23

Finding the Fourth Proportional to 8,930.47, 12,287.82 and 7,331.23

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Solution

The fourth proportional to 8,930.47, 12,287.82 and 7,331.23 is: 10,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.47 : 12,287.82 = 7,331.23 : x
  2. Step 2: Convert to fraction form
    8,930.47/12,287.82 = 7,331.23/x
  3. Step 3: Cross multiply
    8,930.47x = 12,287.82 × 7,331.23
  4. Step 4: Simplify right side
    8,930.47x = 90,084,834.62
  5. Step 5: Solve for x
    x = 90,084,834.62/8,930.47
  6. Step 6: Final answer
    x = 10,087.36

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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.