Home / 7,011.85-10,517.70-2,081.53

Finding the Fourth Proportional to 7,011.85, 10,517.70 and 2,081.53

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Solution

The fourth proportional to 7,011.85, 10,517.70 and 2,081.53 is: 3,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.85 : 10,517.70 = 2,081.53 : x
  2. Step 2: Convert to fraction form
    7,011.85/10,517.70 = 2,081.53/x
  3. Step 3: Cross multiply
    7,011.85x = 10,517.70 × 2,081.53
  4. Step 4: Simplify right side
    7,011.85x = 21,892,908.08
  5. Step 5: Solve for x
    x = 21,892,908.08/7,011.85
  6. Step 6: Final answer
    x = 3,122.27

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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.