Home / 13,424.34-20,139.30-4,064.88

Finding the Fourth Proportional to 13,424.34, 20,139.30 and 4,064.88

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Solution

The fourth proportional to 13,424.34, 20,139.30 and 4,064.88 is: 6,098.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.34 : 20,139.30 = 4,064.88 : x
  2. Step 2: Convert to fraction form
    13,424.34/20,139.30 = 4,064.88/x
  3. Step 3: Cross multiply
    13,424.34x = 20,139.30 × 4,064.88
  4. Step 4: Simplify right side
    13,424.34x = 81,863,837.78
  5. Step 5: Solve for x
    x = 81,863,837.78/13,424.34
  6. Step 6: Final answer
    x = 6,098.16

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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.