Home / 12,331.95-17,016.23-7,859.53

Finding the Fourth Proportional to 12,331.95, 17,016.23 and 7,859.53

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Solution

The fourth proportional to 12,331.95, 17,016.23 and 7,859.53 is: 10,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.95 : 17,016.23 = 7,859.53 : x
  2. Step 2: Convert to fraction form
    12,331.95/17,016.23 = 7,859.53/x
  3. Step 3: Cross multiply
    12,331.95x = 17,016.23 × 7,859.53
  4. Step 4: Simplify right side
    12,331.95x = 133,739,566.88
  5. Step 5: Solve for x
    x = 133,739,566.88/12,331.95
  6. Step 6: Final answer
    x = 10,844.97

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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.