Home / 8,047.62-12,071.52-5,291.64

Finding the Fourth Proportional to 8,047.62, 12,071.52 and 5,291.64

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Solution

The fourth proportional to 8,047.62, 12,071.52 and 5,291.64 is: 7,937.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.62 : 12,071.52 = 5,291.64 : x
  2. Step 2: Convert to fraction form
    8,047.62/12,071.52 = 5,291.64/x
  3. Step 3: Cross multiply
    8,047.62x = 12,071.52 × 5,291.64
  4. Step 4: Simplify right side
    8,047.62x = 63,878,138.09
  5. Step 5: Solve for x
    x = 63,878,138.09/8,047.62
  6. Step 6: Final answer
    x = 7,937.52

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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.