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Finding the Fourth Proportional to 7,010.18, 10,515.90 and 2,012.61

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Solution

The fourth proportional to 7,010.18, 10,515.90 and 2,012.61 is: 3,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.18 : 10,515.90 = 2,012.61 : x
  2. Step 2: Convert to fraction form
    7,010.18/10,515.90 = 2,012.61/x
  3. Step 3: Cross multiply
    7,010.18x = 10,515.90 × 2,012.61
  4. Step 4: Simplify right side
    7,010.18x = 21,164,405.50
  5. Step 5: Solve for x
    x = 21,164,405.50/7,010.18
  6. Step 6: Final answer
    x = 3,019.10

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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.