Home / 11,188.16-15,439.53-8,329.67

Finding the Fourth Proportional to 11,188.16, 15,439.53 and 8,329.67

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Solution

The fourth proportional to 11,188.16, 15,439.53 and 8,329.67 is: 11,494.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.16 : 15,439.53 = 8,329.67 : x
  2. Step 2: Convert to fraction form
    11,188.16/15,439.53 = 8,329.67/x
  3. Step 3: Cross multiply
    11,188.16x = 15,439.53 × 8,329.67
  4. Step 4: Simplify right side
    11,188.16x = 128,606,201.79
  5. Step 5: Solve for x
    x = 128,606,201.79/11,188.16
  6. Step 6: Final answer
    x = 11,494.85

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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.