Home / 11,418.40-15,757.34-6,382.63

Finding the Fourth Proportional to 11,418.40, 15,757.34 and 6,382.63

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Solution

The fourth proportional to 11,418.40, 15,757.34 and 6,382.63 is: 8,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.40 : 15,757.34 = 6,382.63 : x
  2. Step 2: Convert to fraction form
    11,418.40/15,757.34 = 6,382.63/x
  3. Step 3: Cross multiply
    11,418.40x = 15,757.34 × 6,382.63
  4. Step 4: Simplify right side
    11,418.40x = 100,573,258.79
  5. Step 5: Solve for x
    x = 100,573,258.79/11,418.40
  6. Step 6: Final answer
    x = 8,808.00

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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.