Home / 12,642.90-17,444.25-7,334.70

Finding the Fourth Proportional to 12,642.90, 17,444.25 and 7,334.70

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Solution

The fourth proportional to 12,642.90, 17,444.25 and 7,334.70 is: 10,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642.90 : 17,444.25 = 7,334.70 : x
  2. Step 2: Convert to fraction form
    12,642.90/17,444.25 = 7,334.70/x
  3. Step 3: Cross multiply
    12,642.90x = 17,444.25 × 7,334.70
  4. Step 4: Simplify right side
    12,642.90x = 127,948,340.48
  5. Step 5: Solve for x
    x = 127,948,340.48/12,642.90
  6. Step 6: Final answer
    x = 10,120.17

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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.