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Finding the Fourth Proportional to 15,003.54, 20,703.33 and 8,714.70

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Solution

The fourth proportional to 15,003.54, 20,703.33 and 8,714.70 is: 12,025.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.54 : 20,703.33 = 8,714.70 : x
  2. Step 2: Convert to fraction form
    15,003.54/20,703.33 = 8,714.70/x
  3. Step 3: Cross multiply
    15,003.54x = 20,703.33 × 8,714.70
  4. Step 4: Simplify right side
    15,003.54x = 180,423,309.95
  5. Step 5: Solve for x
    x = 180,423,309.95/15,003.54
  6. Step 6: Final answer
    x = 12,025.38

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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.