Home / 13,307.82-18,366.09-9,944.79

Finding the Fourth Proportional to 13,307.82, 18,366.09 and 9,944.79

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Solution

The fourth proportional to 13,307.82, 18,366.09 and 9,944.79 is: 13,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.82 : 18,366.09 = 9,944.79 : x
  2. Step 2: Convert to fraction form
    13,307.82/18,366.09 = 9,944.79/x
  3. Step 3: Cross multiply
    13,307.82x = 18,366.09 × 9,944.79
  4. Step 4: Simplify right side
    13,307.82x = 182,646,908.17
  5. Step 5: Solve for x
    x = 182,646,908.17/13,307.82
  6. Step 6: Final answer
    x = 13,724.78

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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.