Home / 8,126.76-11,213.78-4,589.40

Finding the Fourth Proportional to 8,126.76, 11,213.78 and 4,589.40

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Solution

The fourth proportional to 8,126.76, 11,213.78 and 4,589.40 is: 6,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.76 : 11,213.78 = 4,589.40 : x
  2. Step 2: Convert to fraction form
    8,126.76/11,213.78 = 4,589.40/x
  3. Step 3: Cross multiply
    8,126.76x = 11,213.78 × 4,589.40
  4. Step 4: Simplify right side
    8,126.76x = 51,464,521.93
  5. Step 5: Solve for x
    x = 51,464,521.93/8,126.76
  6. Step 6: Final answer
    x = 6,332.72

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Half scale
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Double scale
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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.