Home / 14,235.30-19,640.97-8,645.22

Finding the Fourth Proportional to 14,235.30, 19,640.97 and 8,645.22

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Solution

The fourth proportional to 14,235.30, 19,640.97 and 8,645.22 is: 11,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.30 : 19,640.97 = 8,645.22 : x
  2. Step 2: Convert to fraction form
    14,235.30/19,640.97 = 8,645.22/x
  3. Step 3: Cross multiply
    14,235.30x = 19,640.97 × 8,645.22
  4. Step 4: Simplify right side
    14,235.30x = 169,800,506.66
  5. Step 5: Solve for x
    x = 169,800,506.66/14,235.30
  6. Step 6: Final answer
    x = 11,928.13

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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.