Home / 15,403.33-21,254.99-11,372.30

Finding the Fourth Proportional to 15,403.33, 21,254.99 and 11,372.30

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Solution

The fourth proportional to 15,403.33, 21,254.99 and 11,372.30 is: 15,692.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403.33 : 21,254.99 = 11,372.30 : x
  2. Step 2: Convert to fraction form
    15,403.33/21,254.99 = 11,372.30/x
  3. Step 3: Cross multiply
    15,403.33x = 21,254.99 × 11,372.30
  4. Step 4: Simplify right side
    15,403.33x = 241,718,122.78
  5. Step 5: Solve for x
    x = 241,718,122.78/15,403.33
  6. Step 6: Final answer
    x = 15,692.59

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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.