Home / 16,982.60-25,483.80-7,121.12

Finding the Fourth Proportional to 16,982.60, 25,483.80 and 7,121.12

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Solution

The fourth proportional to 16,982.60, 25,483.80 and 7,121.12 is: 10,685.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.60 : 25,483.80 = 7,121.12 : x
  2. Step 2: Convert to fraction form
    16,982.60/25,483.80 = 7,121.12/x
  3. Step 3: Cross multiply
    16,982.60x = 25,483.80 × 7,121.12
  4. Step 4: Simplify right side
    16,982.60x = 181,473,197.86
  5. Step 5: Solve for x
    x = 181,473,197.86/16,982.60
  6. Step 6: Final answer
    x = 10,685.83

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1.5x scale

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.