Home / 13,165.12-19,747.76-5,374.72

Finding the Fourth Proportional to 13,165.12, 19,747.76 and 5,374.72

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Solution

The fourth proportional to 13,165.12, 19,747.76 and 5,374.72 is: 8,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.12 : 19,747.76 = 5,374.72 : x
  2. Step 2: Convert to fraction form
    13,165.12/19,747.76 = 5,374.72/x
  3. Step 3: Cross multiply
    13,165.12x = 19,747.76 × 5,374.72
  4. Step 4: Simplify right side
    13,165.12x = 106,138,680.63
  5. Step 5: Solve for x
    x = 106,138,680.63/13,165.12
  6. Step 6: Final answer
    x = 8,062.11

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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.