Home / 15,454.95-23,172.09-7,123.70

Finding the Fourth Proportional to 15,454.95, 23,172.09 and 7,123.70

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Solution

The fourth proportional to 15,454.95, 23,172.09 and 7,123.70 is: 10,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.95 : 23,172.09 = 7,123.70 : x
  2. Step 2: Convert to fraction form
    15,454.95/23,172.09 = 7,123.70/x
  3. Step 3: Cross multiply
    15,454.95x = 23,172.09 × 7,123.70
  4. Step 4: Simplify right side
    15,454.95x = 165,070,901.67
  5. Step 5: Solve for x
    x = 165,070,901.67/15,454.95
  6. Step 6: Final answer
    x = 10,680.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.