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Finding the Fourth Proportional to 8,988.65, 13,478.10 and 4,052.51

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Solution

The fourth proportional to 8,988.65, 13,478.10 and 4,052.51 is: 6,076.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.65 : 13,478.10 = 4,052.51 : x
  2. Step 2: Convert to fraction form
    8,988.65/13,478.10 = 4,052.51/x
  3. Step 3: Cross multiply
    8,988.65x = 13,478.10 × 4,052.51
  4. Step 4: Simplify right side
    8,988.65x = 54,620,135.03
  5. Step 5: Solve for x
    x = 54,620,135.03/8,988.65
  6. Step 6: Final answer
    x = 6,076.57

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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.