Home / 13,412.11-18,508.77-7,443.85

Finding the Fourth Proportional to 13,412.11, 18,508.77 and 7,443.85

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Solution

The fourth proportional to 13,412.11, 18,508.77 and 7,443.85 is: 10,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.11 : 18,508.77 = 7,443.85 : x
  2. Step 2: Convert to fraction form
    13,412.11/18,508.77 = 7,443.85/x
  3. Step 3: Cross multiply
    13,412.11x = 18,508.77 × 7,443.85
  4. Step 4: Simplify right side
    13,412.11x = 137,776,507.56
  5. Step 5: Solve for x
    x = 137,776,507.56/13,412.11
  6. Step 6: Final answer
    x = 10,272.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.