Home / 18,883.55-28,319.45-6,874.29

Finding the Fourth Proportional to 18,883.55, 28,319.45 and 6,874.29

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Solution

The fourth proportional to 18,883.55, 28,319.45 and 6,874.29 is: 10,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.55 : 28,319.45 = 6,874.29 : x
  2. Step 2: Convert to fraction form
    18,883.55/28,319.45 = 6,874.29/x
  3. Step 3: Cross multiply
    18,883.55x = 28,319.45 × 6,874.29
  4. Step 4: Simplify right side
    18,883.55x = 194,676,077.57
  5. Step 5: Solve for x
    x = 194,676,077.57/18,883.55
  6. Step 6: Final answer
    x = 10,309.30

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1.5x scale

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.