Home / 8,789.16-12,125.64-5,426.13

Finding the Fourth Proportional to 8,789.16, 12,125.64 and 5,426.13

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Solution

The fourth proportional to 8,789.16, 12,125.64 and 5,426.13 is: 7,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.16 : 12,125.64 = 5,426.13 : x
  2. Step 2: Convert to fraction form
    8,789.16/12,125.64 = 5,426.13/x
  3. Step 3: Cross multiply
    8,789.16x = 12,125.64 × 5,426.13
  4. Step 4: Simplify right side
    8,789.16x = 65,795,298.97
  5. Step 5: Solve for x
    x = 65,795,298.97/8,789.16
  6. Step 6: Final answer
    x = 7,485.96

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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.