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Finding the Fourth Proportional to 15,999.80, 24,011.70 and 8,204.60

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Solution

The fourth proportional to 15,999.80, 24,011.70 and 8,204.60 is: 12,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.80 : 24,011.70 = 8,204.60 : x
  2. Step 2: Convert to fraction form
    15,999.80/24,011.70 = 8,204.60/x
  3. Step 3: Cross multiply
    15,999.80x = 24,011.70 × 8,204.60
  4. Step 4: Simplify right side
    15,999.80x = 197,006,393.82
  5. Step 5: Solve for x
    x = 197,006,393.82/15,999.80
  6. Step 6: Final answer
    x = 12,313.05

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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.