Home / 8,837.66-12,191.36-5,479.40

Finding the Fourth Proportional to 8,837.66, 12,191.36 and 5,479.40

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Solution

The fourth proportional to 8,837.66, 12,191.36 and 5,479.40 is: 7,558.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,837.66 : 12,191.36 = 5,479.40 : x
  2. Step 2: Convert to fraction form
    8,837.66/12,191.36 = 5,479.40/x
  3. Step 3: Cross multiply
    8,837.66x = 12,191.36 × 5,479.40
  4. Step 4: Simplify right side
    8,837.66x = 66,801,337.98
  5. Step 5: Solve for x
    x = 66,801,337.98/8,837.66
  6. Step 6: Final answer
    x = 7,558.71

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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.