Home / 18,162.04-25,063.92-9,985.99

Finding the Fourth Proportional to 18,162.04, 25,063.92 and 9,985.99

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Solution

The fourth proportional to 18,162.04, 25,063.92 and 9,985.99 is: 13,780.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.04 : 25,063.92 = 9,985.99 : x
  2. Step 2: Convert to fraction form
    18,162.04/25,063.92 = 9,985.99/x
  3. Step 3: Cross multiply
    18,162.04x = 25,063.92 × 9,985.99
  4. Step 4: Simplify right side
    18,162.04x = 250,288,027.12
  5. Step 5: Solve for x
    x = 250,288,027.12/18,162.04
  6. Step 6: Final answer
    x = 13,780.83

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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.