Home / 15,298.31-21,111.99-8,584.43

Finding the Fourth Proportional to 15,298.31, 21,111.99 and 8,584.43

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Solution

The fourth proportional to 15,298.31, 21,111.99 and 8,584.43 is: 11,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.31 : 21,111.99 = 8,584.43 : x
  2. Step 2: Convert to fraction form
    15,298.31/21,111.99 = 8,584.43/x
  3. Step 3: Cross multiply
    15,298.31x = 21,111.99 × 8,584.43
  4. Step 4: Simplify right side
    15,298.31x = 181,234,294.76
  5. Step 5: Solve for x
    x = 181,234,294.76/15,298.31
  6. Step 6: Final answer
    x = 11,846.69

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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.