Home / 8,115.29-11,199.95-4,758.25

Finding the Fourth Proportional to 8,115.29, 11,199.95 and 4,758.25

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Solution

The fourth proportional to 8,115.29, 11,199.95 and 4,758.25 is: 6,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.29 : 11,199.95 = 4,758.25 : x
  2. Step 2: Convert to fraction form
    8,115.29/11,199.95 = 4,758.25/x
  3. Step 3: Cross multiply
    8,115.29x = 11,199.95 × 4,758.25
  4. Step 4: Simplify right side
    8,115.29x = 53,292,162.09
  5. Step 5: Solve for x
    x = 53,292,162.09/8,115.29
  6. Step 6: Final answer
    x = 6,566.88

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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.