Home / 12,522.94-18,772.11-5,117.21

Finding the Fourth Proportional to 12,522.94, 18,772.11 and 5,117.21

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Solution

The fourth proportional to 12,522.94, 18,772.11 and 5,117.21 is: 7,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.94 : 18,772.11 = 5,117.21 : x
  2. Step 2: Convert to fraction form
    12,522.94/18,772.11 = 5,117.21/x
  3. Step 3: Cross multiply
    12,522.94x = 18,772.11 × 5,117.21
  4. Step 4: Simplify right side
    12,522.94x = 96,060,829.01
  5. Step 5: Solve for x
    x = 96,060,829.01/12,522.94
  6. Step 6: Final answer
    x = 7,670.79

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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.