Home / 8,179.28-11,291.45-5,663.32

Finding the Fourth Proportional to 8,179.28, 11,291.45 and 5,663.32

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Solution

The fourth proportional to 8,179.28, 11,291.45 and 5,663.32 is: 7,818.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.28 : 11,291.45 = 5,663.32 : x
  2. Step 2: Convert to fraction form
    8,179.28/11,291.45 = 5,663.32/x
  3. Step 3: Cross multiply
    8,179.28x = 11,291.45 × 5,663.32
  4. Step 4: Simplify right side
    8,179.28x = 63,947,069.92
  5. Step 5: Solve for x
    x = 63,947,069.92/8,179.28
  6. Step 6: Final answer
    x = 7,818.18

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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.