Home / 8,518.20-11,755.45-4,741.53

Finding the Fourth Proportional to 8,518.20, 11,755.45 and 4,741.53

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Solution

The fourth proportional to 8,518.20, 11,755.45 and 4,741.53 is: 6,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.20 : 11,755.45 = 4,741.53 : x
  2. Step 2: Convert to fraction form
    8,518.20/11,755.45 = 4,741.53/x
  3. Step 3: Cross multiply
    8,518.20x = 11,755.45 × 4,741.53
  4. Step 4: Simplify right side
    8,518.20x = 55,738,818.84
  5. Step 5: Solve for x
    x = 55,738,818.84/8,518.20
  6. Step 6: Final answer
    x = 6,543.50

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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.