Home / 8,155.17-11,254.23-4,429.17

Finding the Fourth Proportional to 8,155.17, 11,254.23 and 4,429.17

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Solution

The fourth proportional to 8,155.17, 11,254.23 and 4,429.17 is: 6,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.17 : 11,254.23 = 4,429.17 : x
  2. Step 2: Convert to fraction form
    8,155.17/11,254.23 = 4,429.17/x
  3. Step 3: Cross multiply
    8,155.17x = 11,254.23 × 4,429.17
  4. Step 4: Simplify right side
    8,155.17x = 49,846,897.89
  5. Step 5: Solve for x
    x = 49,846,897.89/8,155.17
  6. Step 6: Final answer
    x = 6,112.31

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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.