Home / 10,288.40-15,432.62-3,714.57

Finding the Fourth Proportional to 10,288.40, 15,432.62 and 3,714.57

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Solution

The fourth proportional to 10,288.40, 15,432.62 and 3,714.57 is: 5,571.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.40 : 15,432.62 = 3,714.57 : x
  2. Step 2: Convert to fraction form
    10,288.40/15,432.62 = 3,714.57/x
  3. Step 3: Cross multiply
    10,288.40x = 15,432.62 × 3,714.57
  4. Step 4: Simplify right side
    10,288.40x = 57,325,528.70
  5. Step 5: Solve for x
    x = 57,325,528.70/10,288.40
  6. Step 6: Final answer
    x = 5,571.86

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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.