Home / 7,824.95-11,737.11-3,143.55

Finding the Fourth Proportional to 7,824.95, 11,737.11 and 3,143.55

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Solution

The fourth proportional to 7,824.95, 11,737.11 and 3,143.55 is: 4,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.95 : 11,737.11 = 3,143.55 : x
  2. Step 2: Convert to fraction form
    7,824.95/11,737.11 = 3,143.55/x
  3. Step 3: Cross multiply
    7,824.95x = 11,737.11 × 3,143.55
  4. Step 4: Simplify right side
    7,824.95x = 36,896,192.14
  5. Step 5: Solve for x
    x = 36,896,192.14/7,824.95
  6. Step 6: Final answer
    x = 4,715.20

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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.