Home / 8,106.29-11,184.77-4,919.51

Finding the Fourth Proportional to 8,106.29, 11,184.77 and 4,919.51

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Solution

The fourth proportional to 8,106.29, 11,184.77 and 4,919.51 is: 6,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.29 : 11,184.77 = 4,919.51 : x
  2. Step 2: Convert to fraction form
    8,106.29/11,184.77 = 4,919.51/x
  3. Step 3: Cross multiply
    8,106.29x = 11,184.77 × 4,919.51
  4. Step 4: Simplify right side
    8,106.29x = 55,023,507.34
  5. Step 5: Solve for x
    x = 55,023,507.34/8,106.29
  6. Step 6: Final answer
    x = 6,787.76

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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.