Home / 11,138.33-15,370.89-6,102.87

Finding the Fourth Proportional to 11,138.33, 15,370.89 and 6,102.87

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Solution

The fourth proportional to 11,138.33, 15,370.89 and 6,102.87 is: 8,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.33 : 15,370.89 = 6,102.87 : x
  2. Step 2: Convert to fraction form
    11,138.33/15,370.89 = 6,102.87/x
  3. Step 3: Cross multiply
    11,138.33x = 15,370.89 × 6,102.87
  4. Step 4: Simplify right side
    11,138.33x = 93,806,543.45
  5. Step 5: Solve for x
    x = 93,806,543.45/11,138.33
  6. Step 6: Final answer
    x = 8,421.96

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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.