Home / 8,872.28-13,309.70-2,947.16

Finding the Fourth Proportional to 8,872.28, 13,309.70 and 2,947.16

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Solution

The fourth proportional to 8,872.28, 13,309.70 and 2,947.16 is: 4,421.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.28 : 13,309.70 = 2,947.16 : x
  2. Step 2: Convert to fraction form
    8,872.28/13,309.70 = 2,947.16/x
  3. Step 3: Cross multiply
    8,872.28x = 13,309.70 × 2,947.16
  4. Step 4: Simplify right side
    8,872.28x = 39,225,734.17
  5. Step 5: Solve for x
    x = 39,225,734.17/8,872.28
  6. Step 6: Final answer
    x = 4,421.16

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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.