Home / 15,048.20-20,766.15-8,333.70

Finding the Fourth Proportional to 15,048.20, 20,766.15 and 8,333.70

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Solution

The fourth proportional to 15,048.20, 20,766.15 and 8,333.70 is: 11,500.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.20 : 20,766.15 = 8,333.70 : x
  2. Step 2: Convert to fraction form
    15,048.20/20,766.15 = 8,333.70/x
  3. Step 3: Cross multiply
    15,048.20x = 20,766.15 × 8,333.70
  4. Step 4: Simplify right side
    15,048.20x = 173,058,864.26
  5. Step 5: Solve for x
    x = 173,058,864.26/15,048.20
  6. Step 6: Final answer
    x = 11,500.31

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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.