Home / 10,660.79-15,992.44-4,420.02

Finding the Fourth Proportional to 10,660.79, 15,992.44 and 4,420.02

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Solution

The fourth proportional to 10,660.79, 15,992.44 and 4,420.02 is: 6,630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.79 : 15,992.44 = 4,420.02 : x
  2. Step 2: Convert to fraction form
    10,660.79/15,992.44 = 4,420.02/x
  3. Step 3: Cross multiply
    10,660.79x = 15,992.44 × 4,420.02
  4. Step 4: Simplify right side
    10,660.79x = 70,686,863.61
  5. Step 5: Solve for x
    x = 70,686,863.61/10,660.79
  6. Step 6: Final answer
    x = 6,630.55

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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.