Home / 13,379.75-18,444.38-10,187.48

Finding the Fourth Proportional to 13,379.75, 18,444.38 and 10,187.48

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Solution

The fourth proportional to 13,379.75, 18,444.38 and 10,187.48 is: 14,043.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.75 : 18,444.38 = 10,187.48 : x
  2. Step 2: Convert to fraction form
    13,379.75/18,444.38 = 10,187.48/x
  3. Step 3: Cross multiply
    13,379.75x = 18,444.38 × 10,187.48
  4. Step 4: Simplify right side
    13,379.75x = 187,901,609.20
  5. Step 5: Solve for x
    x = 187,901,609.20/13,379.75
  6. Step 6: Final answer
    x = 14,043.74

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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.