Home / 18,712.08-25,821.72-10,326.96

Finding the Fourth Proportional to 18,712.08, 25,821.72 and 10,326.96

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Solution

The fourth proportional to 18,712.08, 25,821.72 and 10,326.96 is: 14,250.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.08 : 25,821.72 = 10,326.96 : x
  2. Step 2: Convert to fraction form
    18,712.08/25,821.72 = 10,326.96/x
  3. Step 3: Cross multiply
    18,712.08x = 25,821.72 × 10,326.96
  4. Step 4: Simplify right side
    18,712.08x = 266,659,869.57
  5. Step 5: Solve for x
    x = 266,659,869.57/18,712.08
  6. Step 6: Final answer
    x = 14,250.68

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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.