Home / 8,701.56-13,052.25-2,127.78

Finding the Fourth Proportional to 8,701.56, 13,052.25 and 2,127.78

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Solution

The fourth proportional to 8,701.56, 13,052.25 and 2,127.78 is: 3,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.56 : 13,052.25 = 2,127.78 : x
  2. Step 2: Convert to fraction form
    8,701.56/13,052.25 = 2,127.78/x
  3. Step 3: Cross multiply
    8,701.56x = 13,052.25 × 2,127.78
  4. Step 4: Simplify right side
    8,701.56x = 27,772,316.51
  5. Step 5: Solve for x
    x = 27,772,316.51/8,701.56
  6. Step 6: Final answer
    x = 3,191.65

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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.