Home / 18,316.40-27,471.60-5,169.69

Finding the Fourth Proportional to 18,316.40, 27,471.60 and 5,169.69

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Solution

The fourth proportional to 18,316.40, 27,471.60 and 5,169.69 is: 7,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,316.40 : 27,471.60 = 5,169.69 : x
  2. Step 2: Convert to fraction form
    18,316.40/27,471.60 = 5,169.69/x
  3. Step 3: Cross multiply
    18,316.40x = 27,471.60 × 5,169.69
  4. Step 4: Simplify right side
    18,316.40x = 142,019,655.80
  5. Step 5: Solve for x
    x = 142,019,655.80/18,316.40
  6. Step 6: Final answer
    x = 7,753.69

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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.