Home / 15,652.16-21,599.27-8,578.43

Finding the Fourth Proportional to 15,652.16, 21,599.27 and 8,578.43

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Solution

The fourth proportional to 15,652.16, 21,599.27 and 8,578.43 is: 11,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,652.16 : 21,599.27 = 8,578.43 : x
  2. Step 2: Convert to fraction form
    15,652.16/21,599.27 = 8,578.43/x
  3. Step 3: Cross multiply
    15,652.16x = 21,599.27 × 8,578.43
  4. Step 4: Simplify right side
    15,652.16x = 185,287,836.85
  5. Step 5: Solve for x
    x = 185,287,836.85/15,652.16
  6. Step 6: Final answer
    x = 11,837.84

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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.