Home / 15,899.03-21,939.08-8,824.69

Finding the Fourth Proportional to 15,899.03, 21,939.08 and 8,824.69

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Solution

The fourth proportional to 15,899.03, 21,939.08 and 8,824.69 is: 12,177.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,899.03 : 21,939.08 = 8,824.69 : x
  2. Step 2: Convert to fraction form
    15,899.03/21,939.08 = 8,824.69/x
  3. Step 3: Cross multiply
    15,899.03x = 21,939.08 × 8,824.69
  4. Step 4: Simplify right side
    15,899.03x = 193,605,480.91
  5. Step 5: Solve for x
    x = 193,605,480.91/15,899.03
  6. Step 6: Final answer
    x = 12,177.19

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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.