Home / 13,917.12-20,870.49-5,594.33

Finding the Fourth Proportional to 13,917.12, 20,870.49 and 5,594.33

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Solution

The fourth proportional to 13,917.12, 20,870.49 and 5,594.33 is: 8,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.12 : 20,870.49 = 5,594.33 : x
  2. Step 2: Convert to fraction form
    13,917.12/20,870.49 = 5,594.33/x
  3. Step 3: Cross multiply
    13,917.12x = 20,870.49 × 5,594.33
  4. Step 4: Simplify right side
    13,917.12x = 116,756,408.32
  5. Step 5: Solve for x
    x = 116,756,408.32/13,917.12
  6. Step 6: Final answer
    x = 8,389.41

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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.