Home / 10,487.37-15,720.08-3,910.91

Finding the Fourth Proportional to 10,487.37, 15,720.08 and 3,910.91

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Solution

The fourth proportional to 10,487.37, 15,720.08 and 3,910.91 is: 5,862.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.37 : 15,720.08 = 3,910.91 : x
  2. Step 2: Convert to fraction form
    10,487.37/15,720.08 = 3,910.91/x
  3. Step 3: Cross multiply
    10,487.37x = 15,720.08 × 3,910.91
  4. Step 4: Simplify right side
    10,487.37x = 61,479,818.07
  5. Step 5: Solve for x
    x = 61,479,818.07/10,487.37
  6. Step 6: Final answer
    x = 5,862.27

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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.