Home / 8,207.28-11,330.72-5,417.64

Finding the Fourth Proportional to 8,207.28, 11,330.72 and 5,417.64

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Solution

The fourth proportional to 8,207.28, 11,330.72 and 5,417.64 is: 7,479.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.28 : 11,330.72 = 5,417.64 : x
  2. Step 2: Convert to fraction form
    8,207.28/11,330.72 = 5,417.64/x
  3. Step 3: Cross multiply
    8,207.28x = 11,330.72 × 5,417.64
  4. Step 4: Simplify right side
    8,207.28x = 61,385,761.90
  5. Step 5: Solve for x
    x = 61,385,761.90/8,207.28
  6. Step 6: Final answer
    x = 7,479.43

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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.