Home / 8,721.03-12,034.88-4,742.11

Finding the Fourth Proportional to 8,721.03, 12,034.88 and 4,742.11

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Solution

The fourth proportional to 8,721.03, 12,034.88 and 4,742.11 is: 6,544.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.03 : 12,034.88 = 4,742.11 : x
  2. Step 2: Convert to fraction form
    8,721.03/12,034.88 = 4,742.11/x
  3. Step 3: Cross multiply
    8,721.03x = 12,034.88 × 4,742.11
  4. Step 4: Simplify right side
    8,721.03x = 57,070,679.55
  5. Step 5: Solve for x
    x = 57,070,679.55/8,721.03
  6. Step 6: Final answer
    x = 6,544.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.