Home / 8,987.78-13,483.49-3,442.65

Finding the Fourth Proportional to 8,987.78, 13,483.49 and 3,442.65

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Solution

The fourth proportional to 8,987.78, 13,483.49 and 3,442.65 is: 5,164.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.78 : 13,483.49 = 3,442.65 : x
  2. Step 2: Convert to fraction form
    8,987.78/13,483.49 = 3,442.65/x
  3. Step 3: Cross multiply
    8,987.78x = 13,483.49 × 3,442.65
  4. Step 4: Simplify right side
    8,987.78x = 46,418,919.64
  5. Step 5: Solve for x
    x = 46,418,919.64/8,987.78
  6. Step 6: Final answer
    x = 5,164.67

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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.