Home / 12,895.55-19,327.16-6,972.20

Finding the Fourth Proportional to 12,895.55, 19,327.16 and 6,972.20

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Solution

The fourth proportional to 12,895.55, 19,327.16 and 6,972.20 is: 10,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.55 : 19,327.16 = 6,972.20 : x
  2. Step 2: Convert to fraction form
    12,895.55/19,327.16 = 6,972.20/x
  3. Step 3: Cross multiply
    12,895.55x = 19,327.16 × 6,972.20
  4. Step 4: Simplify right side
    12,895.55x = 134,752,833.36
  5. Step 5: Solve for x
    x = 134,752,833.36/12,895.55
  6. Step 6: Final answer
    x = 10,449.56

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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.