Home / 8,427.70-12,637.90-6,481.27

Finding the Fourth Proportional to 8,427.70, 12,637.90 and 6,481.27

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Solution

The fourth proportional to 8,427.70, 12,637.90 and 6,481.27 is: 9,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.70 : 12,637.90 = 6,481.27 : x
  2. Step 2: Convert to fraction form
    8,427.70/12,637.90 = 6,481.27/x
  3. Step 3: Cross multiply
    8,427.70x = 12,637.90 × 6,481.27
  4. Step 4: Simplify right side
    8,427.70x = 81,909,642.13
  5. Step 5: Solve for x
    x = 81,909,642.13/8,427.70
  6. Step 6: Final answer
    x = 9,719.10

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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.