Home / 11,622.28-17,437.74-5,385.28

Finding the Fourth Proportional to 11,622.28, 17,437.74 and 5,385.28

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Solution

The fourth proportional to 11,622.28, 17,437.74 and 5,385.28 is: 8,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.28 : 17,437.74 = 5,385.28 : x
  2. Step 2: Convert to fraction form
    11,622.28/17,437.74 = 5,385.28/x
  3. Step 3: Cross multiply
    11,622.28x = 17,437.74 × 5,385.28
  4. Step 4: Simplify right side
    11,622.28x = 93,907,112.47
  5. Step 5: Solve for x
    x = 93,907,112.47/11,622.28
  6. Step 6: Final answer
    x = 8,079.92

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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.