Home / 10,551.30-15,827.76-3,155.22

Finding the Fourth Proportional to 10,551.30, 15,827.76 and 3,155.22

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Solution

The fourth proportional to 10,551.30, 15,827.76 and 3,155.22 is: 4,733.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551.30 : 15,827.76 = 3,155.22 : x
  2. Step 2: Convert to fraction form
    10,551.30/15,827.76 = 3,155.22/x
  3. Step 3: Cross multiply
    10,551.30x = 15,827.76 × 3,155.22
  4. Step 4: Simplify right side
    10,551.30x = 49,940,064.91
  5. Step 5: Solve for x
    x = 49,940,064.91/10,551.30
  6. Step 6: Final answer
    x = 4,733.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.