Home / 8,755.34-12,082.85-5,616.86

Finding the Fourth Proportional to 8,755.34, 12,082.85 and 5,616.86

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Solution

The fourth proportional to 8,755.34, 12,082.85 and 5,616.86 is: 7,751.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.34 : 12,082.85 = 5,616.86 : x
  2. Step 2: Convert to fraction form
    8,755.34/12,082.85 = 5,616.86/x
  3. Step 3: Cross multiply
    8,755.34x = 12,082.85 × 5,616.86
  4. Step 4: Simplify right side
    8,755.34x = 67,867,588.35
  5. Step 5: Solve for x
    x = 67,867,588.35/8,755.34
  6. Step 6: Final answer
    x = 7,751.57

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1.5x scale

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.