Home / 15,029.67-20,747.60-8,982.05

Finding the Fourth Proportional to 15,029.67, 20,747.60 and 8,982.05

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Solution

The fourth proportional to 15,029.67, 20,747.60 and 8,982.05 is: 12,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,029.67 : 20,747.60 = 8,982.05 : x
  2. Step 2: Convert to fraction form
    15,029.67/20,747.60 = 8,982.05/x
  3. Step 3: Cross multiply
    15,029.67x = 20,747.60 × 8,982.05
  4. Step 4: Simplify right side
    15,029.67x = 186,355,909.74
  5. Step 5: Solve for x
    x = 186,355,909.74/15,029.67
  6. Step 6: Final answer
    x = 12,399.20

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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.