Home / 12,851.16-19,278.55-3,967.22

Finding the Fourth Proportional to 12,851.16, 19,278.55 and 3,967.22

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Solution

The fourth proportional to 12,851.16, 19,278.55 and 3,967.22 is: 5,951.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851.16 : 19,278.55 = 3,967.22 : x
  2. Step 2: Convert to fraction form
    12,851.16/19,278.55 = 3,967.22/x
  3. Step 3: Cross multiply
    12,851.16x = 19,278.55 × 3,967.22
  4. Step 4: Simplify right side
    12,851.16x = 76,482,132.90
  5. Step 5: Solve for x
    x = 76,482,132.90/12,851.16
  6. Step 6: Final answer
    x = 5,951.38

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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.