Home / 15,874.29-21,907.40-8,800.56

Finding the Fourth Proportional to 15,874.29, 21,907.40 and 8,800.56

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Solution

The fourth proportional to 15,874.29, 21,907.40 and 8,800.56 is: 12,145.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.29 : 21,907.40 = 8,800.56 : x
  2. Step 2: Convert to fraction form
    15,874.29/21,907.40 = 8,800.56/x
  3. Step 3: Cross multiply
    15,874.29x = 21,907.40 × 8,800.56
  4. Step 4: Simplify right side
    15,874.29x = 192,797,344.14
  5. Step 5: Solve for x
    x = 192,797,344.14/15,874.29
  6. Step 6: Final answer
    x = 12,145.26

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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.