Home / 8,764.23-12,094.55-5,405.70

Finding the Fourth Proportional to 8,764.23, 12,094.55 and 5,405.70

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Solution

The fourth proportional to 8,764.23, 12,094.55 and 5,405.70 is: 7,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.23 : 12,094.55 = 5,405.70 : x
  2. Step 2: Convert to fraction form
    8,764.23/12,094.55 = 5,405.70/x
  3. Step 3: Cross multiply
    8,764.23x = 12,094.55 × 5,405.70
  4. Step 4: Simplify right side
    8,764.23x = 65,379,481.91
  5. Step 5: Solve for x
    x = 65,379,481.91/8,764.23
  6. Step 6: Final answer
    x = 7,459.81

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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.