Home / 12,781.98-19,147.02-6,452.96

Finding the Fourth Proportional to 12,781.98, 19,147.02 and 6,452.96

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Solution

The fourth proportional to 12,781.98, 19,147.02 and 6,452.96 is: 9,666.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.98 : 19,147.02 = 6,452.96 : x
  2. Step 2: Convert to fraction form
    12,781.98/19,147.02 = 6,452.96/x
  3. Step 3: Cross multiply
    12,781.98x = 19,147.02 × 6,452.96
  4. Step 4: Simplify right side
    12,781.98x = 123,554,954.18
  5. Step 5: Solve for x
    x = 123,554,954.18/12,781.98
  6. Step 6: Final answer
    x = 9,666.34

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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.