Home / 12,340.64-17,033.24-7,622.20

Finding the Fourth Proportional to 12,340.64, 17,033.24 and 7,622.20

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Solution

The fourth proportional to 12,340.64, 17,033.24 and 7,622.20 is: 10,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.64 : 17,033.24 = 7,622.20 : x
  2. Step 2: Convert to fraction form
    12,340.64/17,033.24 = 7,622.20/x
  3. Step 3: Cross multiply
    12,340.64x = 17,033.24 × 7,622.20
  4. Step 4: Simplify right side
    12,340.64x = 129,830,761.93
  5. Step 5: Solve for x
    x = 129,830,761.93/12,340.64
  6. Step 6: Final answer
    x = 10,520.59

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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.