Home / 8,518.72-11,755.68-4,741.76

Finding the Fourth Proportional to 8,518.72, 11,755.68 and 4,741.76

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Solution

The fourth proportional to 8,518.72, 11,755.68 and 4,741.76 is: 6,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.72 : 11,755.68 = 4,741.76 : x
  2. Step 2: Convert to fraction form
    8,518.72/11,755.68 = 4,741.76/x
  3. Step 3: Cross multiply
    8,518.72x = 11,755.68 × 4,741.76
  4. Step 4: Simplify right side
    8,518.72x = 55,742,613.20
  5. Step 5: Solve for x
    x = 55,742,613.20/8,518.72
  6. Step 6: Final answer
    x = 6,543.54

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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.