Home / 8,867.91-12,242.64-6,475.49

Finding the Fourth Proportional to 8,867.91, 12,242.64 and 6,475.49

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Solution

The fourth proportional to 8,867.91, 12,242.64 and 6,475.49 is: 8,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.91 : 12,242.64 = 6,475.49 : x
  2. Step 2: Convert to fraction form
    8,867.91/12,242.64 = 6,475.49/x
  3. Step 3: Cross multiply
    8,867.91x = 12,242.64 × 6,475.49
  4. Step 4: Simplify right side
    8,867.91x = 79,277,170.74
  5. Step 5: Solve for x
    x = 79,277,170.74/8,867.91
  6. Step 6: Final answer
    x = 8,939.79

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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.