Home / 11,423.50-15,765.27-6,644.71

Finding the Fourth Proportional to 11,423.50, 15,765.27 and 6,644.71

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Solution

The fourth proportional to 11,423.50, 15,765.27 and 6,644.71 is: 9,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.50 : 15,765.27 = 6,644.71 : x
  2. Step 2: Convert to fraction form
    11,423.50/15,765.27 = 6,644.71/x
  3. Step 3: Cross multiply
    11,423.50x = 15,765.27 × 6,644.71
  4. Step 4: Simplify right side
    11,423.50x = 104,755,647.22
  5. Step 5: Solve for x
    x = 104,755,647.22/11,423.50
  6. Step 6: Final answer
    x = 9,170.19

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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.