Home / 8,375.20-12,557.63-2,828.01

Finding the Fourth Proportional to 8,375.20, 12,557.63 and 2,828.01

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Solution

The fourth proportional to 8,375.20, 12,557.63 and 2,828.01 is: 4,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.20 : 12,557.63 = 2,828.01 : x
  2. Step 2: Convert to fraction form
    8,375.20/12,557.63 = 2,828.01/x
  3. Step 3: Cross multiply
    8,375.20x = 12,557.63 × 2,828.01
  4. Step 4: Simplify right side
    8,375.20x = 35,513,157.38
  5. Step 5: Solve for x
    x = 35,513,157.38/8,375.20
  6. Step 6: Final answer
    x = 4,240.28

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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.