Home / 10,603.44-15,905.14-2,811.64

Finding the Fourth Proportional to 10,603.44, 15,905.14 and 2,811.64

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Solution

The fourth proportional to 10,603.44, 15,905.14 and 2,811.64 is: 4,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.44 : 15,905.14 = 2,811.64 : x
  2. Step 2: Convert to fraction form
    10,603.44/15,905.14 = 2,811.64/x
  3. Step 3: Cross multiply
    10,603.44x = 15,905.14 × 2,811.64
  4. Step 4: Simplify right side
    10,603.44x = 44,719,527.83
  5. Step 5: Solve for x
    x = 44,719,527.83/10,603.44
  6. Step 6: Final answer
    x = 4,217.45

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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.