Home / 15,223.08-21,008.83-8,508.99

Finding the Fourth Proportional to 15,223.08, 21,008.83 and 8,508.99

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Solution

The fourth proportional to 15,223.08, 21,008.83 and 8,508.99 is: 11,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223.08 : 21,008.83 = 8,508.99 : x
  2. Step 2: Convert to fraction form
    15,223.08/21,008.83 = 8,508.99/x
  3. Step 3: Cross multiply
    15,223.08x = 21,008.83 × 8,508.99
  4. Step 4: Simplify right side
    15,223.08x = 178,763,924.38
  5. Step 5: Solve for x
    x = 178,763,924.38/15,223.08
  6. Step 6: Final answer
    x = 11,742.95

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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.