Home / 15,579.30-21,499.92-9,611.22

Finding the Fourth Proportional to 15,579.30, 21,499.92 and 9,611.22

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Solution

The fourth proportional to 15,579.30, 21,499.92 and 9,611.22 is: 13,263.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.30 : 21,499.92 = 9,611.22 : x
  2. Step 2: Convert to fraction form
    15,579.30/21,499.92 = 9,611.22/x
  3. Step 3: Cross multiply
    15,579.30x = 21,499.92 × 9,611.22
  4. Step 4: Simplify right side
    15,579.30x = 206,640,461.10
  5. Step 5: Solve for x
    x = 206,640,461.10/15,579.30
  6. Step 6: Final answer
    x = 13,263.78

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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.