Home / 15,029.66-20,738.55-9,724.70

Finding the Fourth Proportional to 15,029.66, 20,738.55 and 9,724.70

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Solution

The fourth proportional to 15,029.66, 20,738.55 and 9,724.70 is: 13,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,029.66 : 20,738.55 = 9,724.70 : x
  2. Step 2: Convert to fraction form
    15,029.66/20,738.55 = 9,724.70/x
  3. Step 3: Cross multiply
    15,029.66x = 20,738.55 × 9,724.70
  4. Step 4: Simplify right side
    15,029.66x = 201,676,177.19
  5. Step 5: Solve for x
    x = 201,676,177.19/15,029.66
  6. Step 6: Final answer
    x = 13,418.55

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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.