Home / 10,664.84-15,992.40-5,474.36

Finding the Fourth Proportional to 10,664.84, 15,992.40 and 5,474.36

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Solution

The fourth proportional to 10,664.84, 15,992.40 and 5,474.36 is: 8,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.84 : 15,992.40 = 5,474.36 : x
  2. Step 2: Convert to fraction form
    10,664.84/15,992.40 = 5,474.36/x
  3. Step 3: Cross multiply
    10,664.84x = 15,992.40 × 5,474.36
  4. Step 4: Simplify right side
    10,664.84x = 87,548,154.86
  5. Step 5: Solve for x
    x = 87,548,154.86/10,664.84
  6. Step 6: Final answer
    x = 8,209.05

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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.