Home / 8,901.48-12,287.97-5,317.71

Finding the Fourth Proportional to 8,901.48, 12,287.97 and 5,317.71

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Solution

The fourth proportional to 8,901.48, 12,287.97 and 5,317.71 is: 7,340.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.48 : 12,287.97 = 5,317.71 : x
  2. Step 2: Convert to fraction form
    8,901.48/12,287.97 = 5,317.71/x
  3. Step 3: Cross multiply
    8,901.48x = 12,287.97 × 5,317.71
  4. Step 4: Simplify right side
    8,901.48x = 65,343,860.95
  5. Step 5: Solve for x
    x = 65,343,860.95/8,901.48
  6. Step 6: Final answer
    x = 7,340.79

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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.