Home / 15,615.73-23,412.04-8,108.51

Finding the Fourth Proportional to 15,615.73, 23,412.04 and 8,108.51

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Solution

The fourth proportional to 15,615.73, 23,412.04 and 8,108.51 is: 12,156.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.73 : 23,412.04 = 8,108.51 : x
  2. Step 2: Convert to fraction form
    15,615.73/23,412.04 = 8,108.51/x
  3. Step 3: Cross multiply
    15,615.73x = 23,412.04 × 8,108.51
  4. Step 4: Simplify right side
    15,615.73x = 189,836,719.92
  5. Step 5: Solve for x
    x = 189,836,719.92/15,615.73
  6. Step 6: Final answer
    x = 12,156.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.