Home / 15,618.76-21,521.99-11,132.98

Finding the Fourth Proportional to 15,618.76, 21,521.99 and 11,132.98

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Solution

The fourth proportional to 15,618.76, 21,521.99 and 11,132.98 is: 15,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.76 : 21,521.99 = 11,132.98 : x
  2. Step 2: Convert to fraction form
    15,618.76/21,521.99 = 11,132.98/x
  3. Step 3: Cross multiply
    15,618.76x = 21,521.99 × 11,132.98
  4. Step 4: Simplify right side
    15,618.76x = 239,603,858.26
  5. Step 5: Solve for x
    x = 239,603,858.26/15,618.76
  6. Step 6: Final answer
    x = 15,340.78

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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.