Home / 7,121.32-10,685.67-5,054.62

Finding the Fourth Proportional to 7,121.32, 10,685.67 and 5,054.62

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Solution

The fourth proportional to 7,121.32, 10,685.67 and 5,054.62 is: 7,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.32 : 10,685.67 = 5,054.62 : x
  2. Step 2: Convert to fraction form
    7,121.32/10,685.67 = 5,054.62/x
  3. Step 3: Cross multiply
    7,121.32x = 10,685.67 × 5,054.62
  4. Step 4: Simplify right side
    7,121.32x = 54,012,001.30
  5. Step 5: Solve for x
    x = 54,012,001.30/7,121.32
  6. Step 6: Final answer
    x = 7,584.55

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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.