Home / 11,191.78-15,444.17-6,155.67

Finding the Fourth Proportional to 11,191.78, 15,444.17 and 6,155.67

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Solution

The fourth proportional to 11,191.78, 15,444.17 and 6,155.67 is: 8,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.78 : 15,444.17 = 6,155.67 : x
  2. Step 2: Convert to fraction form
    11,191.78/15,444.17 = 6,155.67/x
  3. Step 3: Cross multiply
    11,191.78x = 15,444.17 × 6,155.67
  4. Step 4: Simplify right side
    11,191.78x = 95,069,298.79
  5. Step 5: Solve for x
    x = 95,069,298.79/11,191.78
  6. Step 6: Final answer
    x = 8,494.57

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Double scale
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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.