Home / 8,917.36-13,378.38-3,074.40

Finding the Fourth Proportional to 8,917.36, 13,378.38 and 3,074.40

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Solution

The fourth proportional to 8,917.36, 13,378.38 and 3,074.40 is: 4,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.36 : 13,378.38 = 3,074.40 : x
  2. Step 2: Convert to fraction form
    8,917.36/13,378.38 = 3,074.40/x
  3. Step 3: Cross multiply
    8,917.36x = 13,378.38 × 3,074.40
  4. Step 4: Simplify right side
    8,917.36x = 41,130,491.47
  5. Step 5: Solve for x
    x = 41,130,491.47/8,917.36
  6. Step 6: Final answer
    x = 4,612.41

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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.