Home / 10,578.50-15,868.66-2,787.34

Finding the Fourth Proportional to 10,578.50, 15,868.66 and 2,787.34

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Solution

The fourth proportional to 10,578.50, 15,868.66 and 2,787.34 is: 4,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,578.50 : 15,868.66 = 2,787.34 : x
  2. Step 2: Convert to fraction form
    10,578.50/15,868.66 = 2,787.34/x
  3. Step 3: Cross multiply
    10,578.50x = 15,868.66 × 2,787.34
  4. Step 4: Simplify right side
    10,578.50x = 44,231,350.76
  5. Step 5: Solve for x
    x = 44,231,350.76/10,578.50
  6. Step 6: Final answer
    x = 4,181.25

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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.