Home / 8,167.12-11,276.98-6,275.72

Finding the Fourth Proportional to 8,167.12, 11,276.98 and 6,275.72

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Solution

The fourth proportional to 8,167.12, 11,276.98 and 6,275.72 is: 8,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.12 : 11,276.98 = 6,275.72 : x
  2. Step 2: Convert to fraction form
    8,167.12/11,276.98 = 6,275.72/x
  3. Step 3: Cross multiply
    8,167.12x = 11,276.98 × 6,275.72
  4. Step 4: Simplify right side
    8,167.12x = 70,771,195.52
  5. Step 5: Solve for x
    x = 70,771,195.52/8,167.12
  6. Step 6: Final answer
    x = 8,665.38

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Half scale
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Double scale
Find fourth proportional to 8,168.12, 11,278.36 and 6,276.72
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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.