Home / 8,984.28-13,478.34-3,141.08

Finding the Fourth Proportional to 8,984.28, 13,478.34 and 3,141.08

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Solution

The fourth proportional to 8,984.28, 13,478.34 and 3,141.08 is: 4,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.28 : 13,478.34 = 3,141.08 : x
  2. Step 2: Convert to fraction form
    8,984.28/13,478.34 = 3,141.08/x
  3. Step 3: Cross multiply
    8,984.28x = 13,478.34 × 3,141.08
  4. Step 4: Simplify right side
    8,984.28x = 42,336,544.21
  5. Step 5: Solve for x
    x = 42,336,544.21/8,984.28
  6. Step 6: Final answer
    x = 4,712.29

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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.