Home / 12,792.40-19,195.80-5,000.20

Finding the Fourth Proportional to 12,792.40, 19,195.80 and 5,000.20

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Solution

The fourth proportional to 12,792.40, 19,195.80 and 5,000.20 is: 7,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.40 : 19,195.80 = 5,000.20 : x
  2. Step 2: Convert to fraction form
    12,792.40/19,195.80 = 5,000.20/x
  3. Step 3: Cross multiply
    12,792.40x = 19,195.80 × 5,000.20
  4. Step 4: Simplify right side
    12,792.40x = 95,982,839.16
  5. Step 5: Solve for x
    x = 95,982,839.16/12,792.40
  6. Step 6: Final answer
    x = 7,503.11

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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.