Home / 9,276.16-13,921.60-3,438.40

Finding the Fourth Proportional to 9,276.16, 13,921.60 and 3,438.40

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Solution

The fourth proportional to 9,276.16, 13,921.60 and 3,438.40 is: 5,160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,276.16 : 13,921.60 = 3,438.40 : x
  2. Step 2: Convert to fraction form
    9,276.16/13,921.60 = 3,438.40/x
  3. Step 3: Cross multiply
    9,276.16x = 13,921.60 × 3,438.40
  4. Step 4: Simplify right side
    9,276.16x = 47,868,029.44
  5. Step 5: Solve for x
    x = 47,868,029.44/9,276.16
  6. Step 6: Final answer
    x = 5,160.33

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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.