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Finding the Fourth Proportional to 8,959.23, 13,438.93 and 2,719.24

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Solution

The fourth proportional to 8,959.23, 13,438.93 and 2,719.24 is: 4,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.23 : 13,438.93 = 2,719.24 : x
  2. Step 2: Convert to fraction form
    8,959.23/13,438.93 = 2,719.24/x
  3. Step 3: Cross multiply
    8,959.23x = 13,438.93 × 2,719.24
  4. Step 4: Simplify right side
    8,959.23x = 36,543,662.42
  5. Step 5: Solve for x
    x = 36,543,662.42/8,959.23
  6. Step 6: Final answer
    x = 4,078.89

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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.