Home / 13,437.18-20,156.24-5,115.96

Finding the Fourth Proportional to 13,437.18, 20,156.24 and 5,115.96

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Solution

The fourth proportional to 13,437.18, 20,156.24 and 5,115.96 is: 7,674.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.18 : 20,156.24 = 5,115.96 : x
  2. Step 2: Convert to fraction form
    13,437.18/20,156.24 = 5,115.96/x
  3. Step 3: Cross multiply
    13,437.18x = 20,156.24 × 5,115.96
  4. Step 4: Simplify right side
    13,437.18x = 103,118,492.01
  5. Step 5: Solve for x
    x = 103,118,492.01/13,437.18
  6. Step 6: Final answer
    x = 7,674.12

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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.