Home / 11,493.11-15,856.40-7,516.55

Finding the Fourth Proportional to 11,493.11, 15,856.40 and 7,516.55

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Solution

The fourth proportional to 11,493.11, 15,856.40 and 7,516.55 is: 10,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.11 : 15,856.40 = 7,516.55 : x
  2. Step 2: Convert to fraction form
    11,493.11/15,856.40 = 7,516.55/x
  3. Step 3: Cross multiply
    11,493.11x = 15,856.40 × 7,516.55
  4. Step 4: Simplify right side
    11,493.11x = 119,185,306.56
  5. Step 5: Solve for x
    x = 119,185,306.56/11,493.11
  6. Step 6: Final answer
    x = 10,370.16

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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.