Home / 18,982.04-26,186.34-12,269.80

Finding the Fourth Proportional to 18,982.04, 26,186.34 and 12,269.80

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Solution

The fourth proportional to 18,982.04, 26,186.34 and 12,269.80 is: 16,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.04 : 26,186.34 = 12,269.80 : x
  2. Step 2: Convert to fraction form
    18,982.04/26,186.34 = 12,269.80/x
  3. Step 3: Cross multiply
    18,982.04x = 26,186.34 × 12,269.80
  4. Step 4: Simplify right side
    18,982.04x = 321,301,154.53
  5. Step 5: Solve for x
    x = 321,301,154.53/18,982.04
  6. Step 6: Final answer
    x = 16,926.59

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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.