Home / 13,129.12-19,701.83-5,337.91

Finding the Fourth Proportional to 13,129.12, 19,701.83 and 5,337.91

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Solution

The fourth proportional to 13,129.12, 19,701.83 and 5,337.91 is: 8,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.12 : 19,701.83 = 5,337.91 : x
  2. Step 2: Convert to fraction form
    13,129.12/19,701.83 = 5,337.91/x
  3. Step 3: Cross multiply
    13,129.12x = 19,701.83 × 5,337.91
  4. Step 4: Simplify right side
    13,129.12x = 105,166,595.38
  5. Step 5: Solve for x
    x = 105,166,595.38/13,129.12
  6. Step 6: Final answer
    x = 8,010.18

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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.