Home / 10,919.92-15,053.16-8,557.96

Finding the Fourth Proportional to 10,919.92, 15,053.16 and 8,557.96

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Solution

The fourth proportional to 10,919.92, 15,053.16 and 8,557.96 is: 11,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.92 : 15,053.16 = 8,557.96 : x
  2. Step 2: Convert to fraction form
    10,919.92/15,053.16 = 8,557.96/x
  3. Step 3: Cross multiply
    10,919.92x = 15,053.16 × 8,557.96
  4. Step 4: Simplify right side
    10,919.92x = 128,824,341.15
  5. Step 5: Solve for x
    x = 128,824,341.15/10,919.92
  6. Step 6: Final answer
    x = 11,797.19

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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.