Home / 8,718.31-13,077.47-2,144.62

Finding the Fourth Proportional to 8,718.31, 13,077.47 and 2,144.62

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Solution

The fourth proportional to 8,718.31, 13,077.47 and 2,144.62 is: 3,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.31 : 13,077.47 = 2,144.62 : x
  2. Step 2: Convert to fraction form
    8,718.31/13,077.47 = 2,144.62/x
  3. Step 3: Cross multiply
    8,718.31x = 13,077.47 × 2,144.62
  4. Step 4: Simplify right side
    8,718.31x = 28,046,203.71
  5. Step 5: Solve for x
    x = 28,046,203.71/8,718.31
  6. Step 6: Final answer
    x = 3,216.93

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.