Home / 8,491.28-11,718.12-4,957.04

Finding the Fourth Proportional to 8,491.28, 11,718.12 and 4,957.04

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Solution

The fourth proportional to 8,491.28, 11,718.12 and 4,957.04 is: 6,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.28 : 11,718.12 = 4,957.04 : x
  2. Step 2: Convert to fraction form
    8,491.28/11,718.12 = 4,957.04/x
  3. Step 3: Cross multiply
    8,491.28x = 11,718.12 × 4,957.04
  4. Step 4: Simplify right side
    8,491.28x = 58,087,189.56
  5. Step 5: Solve for x
    x = 58,087,189.56/8,491.28
  6. Step 6: Final answer
    x = 6,840.80

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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.