Home / 18,907.96-28,366.17-5,761.36

Finding the Fourth Proportional to 18,907.96, 28,366.17 and 5,761.36

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Solution

The fourth proportional to 18,907.96, 28,366.17 and 5,761.36 is: 8,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.96 : 28,366.17 = 5,761.36 : x
  2. Step 2: Convert to fraction form
    18,907.96/28,366.17 = 5,761.36/x
  3. Step 3: Cross multiply
    18,907.96x = 28,366.17 × 5,761.36
  4. Step 4: Simplify right side
    18,907.96x = 163,427,717.19
  5. Step 5: Solve for x
    x = 163,427,717.19/18,907.96
  6. Step 6: Final answer
    x = 8,643.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.