Home / 7,020.16-10,515.60-3,325.60

Finding the Fourth Proportional to 7,020.16, 10,515.60 and 3,325.60

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Solution

The fourth proportional to 7,020.16, 10,515.60 and 3,325.60 is: 4,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.16 : 10,515.60 = 3,325.60 : x
  2. Step 2: Convert to fraction form
    7,020.16/10,515.60 = 3,325.60/x
  3. Step 3: Cross multiply
    7,020.16x = 10,515.60 × 3,325.60
  4. Step 4: Simplify right side
    7,020.16x = 34,970,679.36
  5. Step 5: Solve for x
    x = 34,970,679.36/7,020.16
  6. Step 6: Final answer
    x = 4,981.46

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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.