Home / 14,343.95-21,517.29-5,579.55

Finding the Fourth Proportional to 14,343.95, 21,517.29 and 5,579.55

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Solution

The fourth proportional to 14,343.95, 21,517.29 and 5,579.55 is: 8,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.95 : 21,517.29 = 5,579.55 : x
  2. Step 2: Convert to fraction form
    14,343.95/21,517.29 = 5,579.55/x
  3. Step 3: Cross multiply
    14,343.95x = 21,517.29 × 5,579.55
  4. Step 4: Simplify right side
    14,343.95x = 120,056,795.42
  5. Step 5: Solve for x
    x = 120,056,795.42/14,343.95
  6. Step 6: Final answer
    x = 8,369.85

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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.