Home / 13,437.19-20,156.23-5,115.96

Finding the Fourth Proportional to 13,437.19, 20,156.23 and 5,115.96

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Solution

The fourth proportional to 13,437.19, 20,156.23 and 5,115.96 is: 7,674.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.19 : 20,156.23 = 5,115.96 : x
  2. Step 2: Convert to fraction form
    13,437.19/20,156.23 = 5,115.96/x
  3. Step 3: Cross multiply
    13,437.19x = 20,156.23 × 5,115.96
  4. Step 4: Simplify right side
    13,437.19x = 103,118,466.43
  5. Step 5: Solve for x
    x = 103,118,466.43/13,437.19
  6. Step 6: Final answer
    x = 7,674.11

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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.