Home / 10,115.50-15,173.24-3,190

Finding the Fourth Proportional to 10,115.50, 15,173.24 and 3,190

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Solution

The fourth proportional to 10,115.50, 15,173.24 and 3,190 is: 4,785.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.50 : 15,173.24 = 3,190 : x
  2. Step 2: Convert to fraction form
    10,115.50/15,173.24 = 3,190/x
  3. Step 3: Cross multiply
    10,115.50x = 15,173.24 × 3,190
  4. Step 4: Simplify right side
    10,115.50x = 48,402,635.60
  5. Step 5: Solve for x
    x = 48,402,635.60/10,115.50
  6. Step 6: Final answer
    x = 4,785.00

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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.