Home / 14,738.54-20,340.24-8,278.70

Finding the Fourth Proportional to 14,738.54, 20,340.24 and 8,278.70

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Solution

The fourth proportional to 14,738.54, 20,340.24 and 8,278.70 is: 11,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,738.54 : 20,340.24 = 8,278.70 : x
  2. Step 2: Convert to fraction form
    14,738.54/20,340.24 = 8,278.70/x
  3. Step 3: Cross multiply
    14,738.54x = 20,340.24 × 8,278.70
  4. Step 4: Simplify right side
    14,738.54x = 168,390,744.89
  5. Step 5: Solve for x
    x = 168,390,744.89/14,738.54
  6. Step 6: Final answer
    x = 11,425.20

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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.