Home / 12,581.12-17,362.56-6,992

Finding the Fourth Proportional to 12,581.12, 17,362.56 and 6,992

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Solution

The fourth proportional to 12,581.12, 17,362.56 and 6,992 is: 9,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.12 : 17,362.56 = 6,992 : x
  2. Step 2: Convert to fraction form
    12,581.12/17,362.56 = 6,992/x
  3. Step 3: Cross multiply
    12,581.12x = 17,362.56 × 6,992
  4. Step 4: Simplify right side
    12,581.12x = 121,399,019.52
  5. Step 5: Solve for x
    x = 121,399,019.52/12,581.12
  6. Step 6: Final answer
    x = 9,649.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.