Home / 12,868.87-17,763.42-7,565.26

Finding the Fourth Proportional to 12,868.87, 17,763.42 and 7,565.26

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Solution

The fourth proportional to 12,868.87, 17,763.42 and 7,565.26 is: 10,442.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.87 : 17,763.42 = 7,565.26 : x
  2. Step 2: Convert to fraction form
    12,868.87/17,763.42 = 7,565.26/x
  3. Step 3: Cross multiply
    12,868.87x = 17,763.42 × 7,565.26
  4. Step 4: Simplify right side
    12,868.87x = 134,384,890.79
  5. Step 5: Solve for x
    x = 134,384,890.79/12,868.87
  6. Step 6: Final answer
    x = 10,442.63

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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.