Home / 11,243.92-15,518.28-10,899.76

Finding the Fourth Proportional to 11,243.92, 15,518.28 and 10,899.76

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Solution

The fourth proportional to 11,243.92, 15,518.28 and 10,899.76 is: 15,043.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.92 : 15,518.28 = 10,899.76 : x
  2. Step 2: Convert to fraction form
    11,243.92/15,518.28 = 10,899.76/x
  3. Step 3: Cross multiply
    11,243.92x = 15,518.28 × 10,899.76
  4. Step 4: Simplify right side
    11,243.92x = 169,145,527.61
  5. Step 5: Solve for x
    x = 169,145,527.61/11,243.92
  6. Step 6: Final answer
    x = 15,043.29

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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.