Home / 11,148.40-16,698.30-9,917.20

Finding the Fourth Proportional to 11,148.40, 16,698.30 and 9,917.20

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Solution

The fourth proportional to 11,148.40, 16,698.30 and 9,917.20 is: 14,854.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.40 : 16,698.30 = 9,917.20 : x
  2. Step 2: Convert to fraction form
    11,148.40/16,698.30 = 9,917.20/x
  3. Step 3: Cross multiply
    11,148.40x = 16,698.30 × 9,917.20
  4. Step 4: Simplify right side
    11,148.40x = 165,600,380.76
  5. Step 5: Solve for x
    x = 165,600,380.76/11,148.40
  6. Step 6: Final answer
    x = 14,854.18

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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.