Home / 8,241.28-12,360.30-5,278.36

Finding the Fourth Proportional to 8,241.28, 12,360.30 and 5,278.36

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Solution

The fourth proportional to 8,241.28, 12,360.30 and 5,278.36 is: 7,916.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.28 : 12,360.30 = 5,278.36 : x
  2. Step 2: Convert to fraction form
    8,241.28/12,360.30 = 5,278.36/x
  3. Step 3: Cross multiply
    8,241.28x = 12,360.30 × 5,278.36
  4. Step 4: Simplify right side
    8,241.28x = 65,242,113.11
  5. Step 5: Solve for x
    x = 65,242,113.11/8,241.28
  6. Step 6: Final answer
    x = 7,916.50

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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.