Home / 11,102.24-15,324.51-6,389.66

Finding the Fourth Proportional to 11,102.24, 15,324.51 and 6,389.66

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Solution

The fourth proportional to 11,102.24, 15,324.51 and 6,389.66 is: 8,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.24 : 15,324.51 = 6,389.66 : x
  2. Step 2: Convert to fraction form
    11,102.24/15,324.51 = 6,389.66/x
  3. Step 3: Cross multiply
    11,102.24x = 15,324.51 × 6,389.66
  4. Step 4: Simplify right side
    11,102.24x = 97,918,331.94
  5. Step 5: Solve for x
    x = 97,918,331.94/11,102.24
  6. Step 6: Final answer
    x = 8,819.70

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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.