Home / 10,927.82-15,081.55-6,681.38

Finding the Fourth Proportional to 10,927.82, 15,081.55 and 6,681.38

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Solution

The fourth proportional to 10,927.82, 15,081.55 and 6,681.38 is: 9,221.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.82 : 15,081.55 = 6,681.38 : x
  2. Step 2: Convert to fraction form
    10,927.82/15,081.55 = 6,681.38/x
  3. Step 3: Cross multiply
    10,927.82x = 15,081.55 × 6,681.38
  4. Step 4: Simplify right side
    10,927.82x = 100,765,474.43
  5. Step 5: Solve for x
    x = 100,765,474.43/10,927.82
  6. Step 6: Final answer
    x = 9,221.00

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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.