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Finding the Fourth Proportional to 13,048.80, 18,002.96 and 8,335.84

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Solution

The fourth proportional to 13,048.80, 18,002.96 and 8,335.84 is: 11,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.80 : 18,002.96 = 8,335.84 : x
  2. Step 2: Convert to fraction form
    13,048.80/18,002.96 = 8,335.84/x
  3. Step 3: Cross multiply
    13,048.80x = 18,002.96 × 8,335.84
  4. Step 4: Simplify right side
    13,048.80x = 150,069,794.09
  5. Step 5: Solve for x
    x = 150,069,794.09/13,048.80
  6. Step 6: Final answer
    x = 11,500.66

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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.