Home / 8,155.64-11,254.92-4,429.64

Finding the Fourth Proportional to 8,155.64, 11,254.92 and 4,429.64

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Solution

The fourth proportional to 8,155.64, 11,254.92 and 4,429.64 is: 6,112.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.64 : 11,254.92 = 4,429.64 : x
  2. Step 2: Convert to fraction form
    8,155.64/11,254.92 = 4,429.64/x
  3. Step 3: Cross multiply
    8,155.64x = 11,254.92 × 4,429.64
  4. Step 4: Simplify right side
    8,155.64x = 49,855,243.83
  5. Step 5: Solve for x
    x = 49,855,243.83/8,155.64
  6. Step 6: Final answer
    x = 6,112.98

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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.