Home / 8,375.16-11,555.35-5,392.72

Finding the Fourth Proportional to 8,375.16, 11,555.35 and 5,392.72

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Solution

The fourth proportional to 8,375.16, 11,555.35 and 5,392.72 is: 7,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.16 : 11,555.35 = 5,392.72 : x
  2. Step 2: Convert to fraction form
    8,375.16/11,555.35 = 5,392.72/x
  3. Step 3: Cross multiply
    8,375.16x = 11,555.35 × 5,392.72
  4. Step 4: Simplify right side
    8,375.16x = 62,314,767.05
  5. Step 5: Solve for x
    x = 62,314,767.05/8,375.16
  6. Step 6: Final answer
    x = 7,440.43

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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.