Home / 8,115.76-11,199.70-4,530.51

Finding the Fourth Proportional to 8,115.76, 11,199.70 and 4,530.51

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Solution

The fourth proportional to 8,115.76, 11,199.70 and 4,530.51 is: 6,252.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.76 : 11,199.70 = 4,530.51 : x
  2. Step 2: Convert to fraction form
    8,115.76/11,199.70 = 4,530.51/x
  3. Step 3: Cross multiply
    8,115.76x = 11,199.70 × 4,530.51
  4. Step 4: Simplify right side
    8,115.76x = 50,740,307.90
  5. Step 5: Solve for x
    x = 50,740,307.90/8,115.76
  6. Step 6: Final answer
    x = 6,252.07

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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.