Home / 11,082.81-15,277.31-7,886.55

Finding the Fourth Proportional to 11,082.81, 15,277.31 and 7,886.55

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Solution

The fourth proportional to 11,082.81, 15,277.31 and 7,886.55 is: 10,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,082.81 : 15,277.31 = 7,886.55 : x
  2. Step 2: Convert to fraction form
    11,082.81/15,277.31 = 7,886.55/x
  3. Step 3: Cross multiply
    11,082.81x = 15,277.31 × 7,886.55
  4. Step 4: Simplify right side
    11,082.81x = 120,485,229.75
  5. Step 5: Solve for x
    x = 120,485,229.75/11,082.81
  6. Step 6: Final answer
    x = 10,871.36

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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.