Home / 10,391.72-15,587.60-2,600.52

Finding the Fourth Proportional to 10,391.72, 15,587.60 and 2,600.52

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Solution

The fourth proportional to 10,391.72, 15,587.60 and 2,600.52 is: 3,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.72 : 15,587.60 = 2,600.52 : x
  2. Step 2: Convert to fraction form
    10,391.72/15,587.60 = 2,600.52/x
  3. Step 3: Cross multiply
    10,391.72x = 15,587.60 × 2,600.52
  4. Step 4: Simplify right side
    10,391.72x = 40,535,852.55
  5. Step 5: Solve for x
    x = 40,535,852.55/10,391.72
  6. Step 6: Final answer
    x = 3,900.79

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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.