Home / 8,155.16-11,253.82-4,429.08

Finding the Fourth Proportional to 8,155.16, 11,253.82 and 4,429.08

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Solution

The fourth proportional to 8,155.16, 11,253.82 and 4,429.08 is: 6,111.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.16 : 11,253.82 = 4,429.08 : x
  2. Step 2: Convert to fraction form
    8,155.16/11,253.82 = 4,429.08/x
  3. Step 3: Cross multiply
    8,155.16x = 11,253.82 × 4,429.08
  4. Step 4: Simplify right side
    8,155.16x = 49,844,069.09
  5. Step 5: Solve for x
    x = 49,844,069.09/8,155.16
  6. Step 6: Final answer
    x = 6,111.97

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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.