Home / 8,719.90-13,072.28-3,522.40

Finding the Fourth Proportional to 8,719.90, 13,072.28 and 3,522.40

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Solution

The fourth proportional to 8,719.90, 13,072.28 and 3,522.40 is: 5,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.90 : 13,072.28 = 3,522.40 : x
  2. Step 2: Convert to fraction form
    8,719.90/13,072.28 = 3,522.40/x
  3. Step 3: Cross multiply
    8,719.90x = 13,072.28 × 3,522.40
  4. Step 4: Simplify right side
    8,719.90x = 46,045,799.07
  5. Step 5: Solve for x
    x = 46,045,799.07/8,719.90
  6. Step 6: Final answer
    x = 5,280.54

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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.