Home / 15,875.23-21,906.62-8,704

Finding the Fourth Proportional to 15,875.23, 21,906.62 and 8,704

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Solution

The fourth proportional to 15,875.23, 21,906.62 and 8,704 is: 12,010.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.23 : 21,906.62 = 8,704 : x
  2. Step 2: Convert to fraction form
    15,875.23/21,906.62 = 8,704/x
  3. Step 3: Cross multiply
    15,875.23x = 21,906.62 × 8,704
  4. Step 4: Simplify right side
    15,875.23x = 190,675,220.48
  5. Step 5: Solve for x
    x = 190,675,220.48/15,875.23
  6. Step 6: Final answer
    x = 12,010.86

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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.