Home / 11,274.87-15,541.33-8,881.05

Finding the Fourth Proportional to 11,274.87, 15,541.33 and 8,881.05

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Solution

The fourth proportional to 11,274.87, 15,541.33 and 8,881.05 is: 12,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.87 : 15,541.33 = 8,881.05 : x
  2. Step 2: Convert to fraction form
    11,274.87/15,541.33 = 8,881.05/x
  3. Step 3: Cross multiply
    11,274.87x = 15,541.33 × 8,881.05
  4. Step 4: Simplify right side
    11,274.87x = 138,023,328.80
  5. Step 5: Solve for x
    x = 138,023,328.80/11,274.87
  6. Step 6: Final answer
    x = 12,241.68

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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.