Home / 8,279.28-11,426.04-4,742.64

Finding the Fourth Proportional to 8,279.28, 11,426.04 and 4,742.64

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Solution

The fourth proportional to 8,279.28, 11,426.04 and 4,742.64 is: 6,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.28 : 11,426.04 = 4,742.64 : x
  2. Step 2: Convert to fraction form
    8,279.28/11,426.04 = 4,742.64/x
  3. Step 3: Cross multiply
    8,279.28x = 11,426.04 × 4,742.64
  4. Step 4: Simplify right side
    8,279.28x = 54,189,594.35
  5. Step 5: Solve for x
    x = 54,189,594.35/8,279.28
  6. Step 6: Final answer
    x = 6,545.21

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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.