Home / 10,400.83-15,629.49-5,472.79

Finding the Fourth Proportional to 10,400.83, 15,629.49 and 5,472.79

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Solution

The fourth proportional to 10,400.83, 15,629.49 and 5,472.79 is: 8,224.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.83 : 15,629.49 = 5,472.79 : x
  2. Step 2: Convert to fraction form
    10,400.83/15,629.49 = 5,472.79/x
  3. Step 3: Cross multiply
    10,400.83x = 15,629.49 × 5,472.79
  4. Step 4: Simplify right side
    10,400.83x = 85,536,877.50
  5. Step 5: Solve for x
    x = 85,536,877.50/10,400.83
  6. Step 6: Final answer
    x = 8,224.05

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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.