Home / 8,077.48-12,143.56-6,451.80

Finding the Fourth Proportional to 8,077.48, 12,143.56 and 6,451.80

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Solution

The fourth proportional to 8,077.48, 12,143.56 and 6,451.80 is: 9,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.48 : 12,143.56 = 6,451.80 : x
  2. Step 2: Convert to fraction form
    8,077.48/12,143.56 = 6,451.80/x
  3. Step 3: Cross multiply
    8,077.48x = 12,143.56 × 6,451.80
  4. Step 4: Simplify right side
    8,077.48x = 78,347,820.41
  5. Step 5: Solve for x
    x = 78,347,820.41/8,077.48
  6. Step 6: Final answer
    x = 9,699.54

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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.