Home / 11,418.13-15,758.51-6,383.39

Finding the Fourth Proportional to 11,418.13, 15,758.51 and 6,383.39

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Solution

The fourth proportional to 11,418.13, 15,758.51 and 6,383.39 is: 8,809.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.13 : 15,758.51 = 6,383.39 : x
  2. Step 2: Convert to fraction form
    11,418.13/15,758.51 = 6,383.39/x
  3. Step 3: Cross multiply
    11,418.13x = 15,758.51 × 6,383.39
  4. Step 4: Simplify right side
    11,418.13x = 100,592,715.15
  5. Step 5: Solve for x
    x = 100,592,715.15/11,418.13
  6. Step 6: Final answer
    x = 8,809.91

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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.