Home / 14,120.75-19,478.54-8,806.34

Finding the Fourth Proportional to 14,120.75, 19,478.54 and 8,806.34

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Solution

The fourth proportional to 14,120.75, 19,478.54 and 8,806.34 is: 12,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.75 : 19,478.54 = 8,806.34 : x
  2. Step 2: Convert to fraction form
    14,120.75/19,478.54 = 8,806.34/x
  3. Step 3: Cross multiply
    14,120.75x = 19,478.54 × 8,806.34
  4. Step 4: Simplify right side
    14,120.75x = 171,534,716.66
  5. Step 5: Solve for x
    x = 171,534,716.66/14,120.75
  6. Step 6: Final answer
    x = 12,147.70

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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.