Home / 8,957.13-12,366.39-5,775.90

Finding the Fourth Proportional to 8,957.13, 12,366.39 and 5,775.90

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Solution

The fourth proportional to 8,957.13, 12,366.39 and 5,775.90 is: 7,974.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.13 : 12,366.39 = 5,775.90 : x
  2. Step 2: Convert to fraction form
    8,957.13/12,366.39 = 5,775.90/x
  3. Step 3: Cross multiply
    8,957.13x = 12,366.39 × 5,775.90
  4. Step 4: Simplify right side
    8,957.13x = 71,427,032.00
  5. Step 5: Solve for x
    x = 71,427,032.00/8,957.13
  6. Step 6: Final answer
    x = 7,974.32

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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.