Home / 10,191.63-14,092.20-8,879.43

Finding the Fourth Proportional to 10,191.63, 14,092.20 and 8,879.43

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Solution

The fourth proportional to 10,191.63, 14,092.20 and 8,879.43 is: 12,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191.63 : 14,092.20 = 8,879.43 : x
  2. Step 2: Convert to fraction form
    10,191.63/14,092.20 = 8,879.43/x
  3. Step 3: Cross multiply
    10,191.63x = 14,092.20 × 8,879.43
  4. Step 4: Simplify right side
    10,191.63x = 125,130,703.45
  5. Step 5: Solve for x
    x = 125,130,703.45/10,191.63
  6. Step 6: Final answer
    x = 12,277.79

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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.