Home / 9,247.76-12,761.44-5,711.28

Finding the Fourth Proportional to 9,247.76, 12,761.44 and 5,711.28

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Solution

The fourth proportional to 9,247.76, 12,761.44 and 5,711.28 is: 7,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,247.76 : 12,761.44 = 5,711.28 : x
  2. Step 2: Convert to fraction form
    9,247.76/12,761.44 = 5,711.28/x
  3. Step 3: Cross multiply
    9,247.76x = 12,761.44 × 5,711.28
  4. Step 4: Simplify right side
    9,247.76x = 72,884,157.04
  5. Step 5: Solve for x
    x = 72,884,157.04/9,247.76
  6. Step 6: Final answer
    x = 7,881.28

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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.