Home / 9,917.19-14,875.80-2,991.69

Finding the Fourth Proportional to 9,917.19, 14,875.80 and 2,991.69

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Solution

The fourth proportional to 9,917.19, 14,875.80 and 2,991.69 is: 4,487.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.19 : 14,875.80 = 2,991.69 : x
  2. Step 2: Convert to fraction form
    9,917.19/14,875.80 = 2,991.69/x
  3. Step 3: Cross multiply
    9,917.19x = 14,875.80 × 2,991.69
  4. Step 4: Simplify right side
    9,917.19x = 44,503,767.14
  5. Step 5: Solve for x
    x = 44,503,767.14/9,917.19
  6. Step 6: Final answer
    x = 4,487.54

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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.