Home / 14,439.36-19,920.42-8,774.22

Finding the Fourth Proportional to 14,439.36, 19,920.42 and 8,774.22

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Solution

The fourth proportional to 14,439.36, 19,920.42 and 8,774.22 is: 12,104.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.36 : 19,920.42 = 8,774.22 : x
  2. Step 2: Convert to fraction form
    14,439.36/19,920.42 = 8,774.22/x
  3. Step 3: Cross multiply
    14,439.36x = 19,920.42 × 8,774.22
  4. Step 4: Simplify right side
    14,439.36x = 174,786,147.57
  5. Step 5: Solve for x
    x = 174,786,147.57/14,439.36
  6. Step 6: Final answer
    x = 12,104.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.