Home / 15,508.84-21,402.68-8,794.75

Finding the Fourth Proportional to 15,508.84, 21,402.68 and 8,794.75

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Solution

The fourth proportional to 15,508.84, 21,402.68 and 8,794.75 is: 12,137.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.84 : 21,402.68 = 8,794.75 : x
  2. Step 2: Convert to fraction form
    15,508.84/21,402.68 = 8,794.75/x
  3. Step 3: Cross multiply
    15,508.84x = 21,402.68 × 8,794.75
  4. Step 4: Simplify right side
    15,508.84x = 188,231,272.25
  5. Step 5: Solve for x
    x = 188,231,272.25/15,508.84
  6. Step 6: Final answer
    x = 12,137.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.