Home / 8,100.03-12,160.08-5,318.00

Finding the Fourth Proportional to 8,100.03, 12,160.08 and 5,318.00

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Solution

The fourth proportional to 8,100.03, 12,160.08 and 5,318.00 is: 7,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.03 : 12,160.08 = 5,318.00 : x
  2. Step 2: Convert to fraction form
    8,100.03/12,160.08 = 5,318.00/x
  3. Step 3: Cross multiply
    8,100.03x = 12,160.08 × 5,318.00
  4. Step 4: Simplify right side
    8,100.03x = 64,667,244.64
  5. Step 5: Solve for x
    x = 64,667,244.64/8,100.03
  6. Step 6: Final answer
    x = 7,983.58

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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.