Home / 10,245.97-14,140.11-7,723.63

Finding the Fourth Proportional to 10,245.97, 14,140.11 and 7,723.63

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Solution

The fourth proportional to 10,245.97, 14,140.11 and 7,723.63 is: 10,659.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.97 : 14,140.11 = 7,723.63 : x
  2. Step 2: Convert to fraction form
    10,245.97/14,140.11 = 7,723.63/x
  3. Step 3: Cross multiply
    10,245.97x = 14,140.11 × 7,723.63
  4. Step 4: Simplify right side
    10,245.97x = 109,212,977.80
  5. Step 5: Solve for x
    x = 109,212,977.80/10,245.97
  6. Step 6: Final answer
    x = 10,659.12

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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.