Home / 12,738.95-17,579.42-7,073.55

Finding the Fourth Proportional to 12,738.95, 17,579.42 and 7,073.55

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Solution

The fourth proportional to 12,738.95, 17,579.42 and 7,073.55 is: 9,761.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.95 : 17,579.42 = 7,073.55 : x
  2. Step 2: Convert to fraction form
    12,738.95/17,579.42 = 7,073.55/x
  3. Step 3: Cross multiply
    12,738.95x = 17,579.42 × 7,073.55
  4. Step 4: Simplify right side
    12,738.95x = 124,348,870.97
  5. Step 5: Solve for x
    x = 124,348,870.97/12,738.95
  6. Step 6: Final answer
    x = 9,761.32

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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.