Home / 15,701.39-21,667.94-8,628.23

Finding the Fourth Proportional to 15,701.39, 21,667.94 and 8,628.23

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Solution

The fourth proportional to 15,701.39, 21,667.94 and 8,628.23 is: 11,906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.39 : 21,667.94 = 8,628.23 : x
  2. Step 2: Convert to fraction form
    15,701.39/21,667.94 = 8,628.23/x
  3. Step 3: Cross multiply
    15,701.39x = 21,667.94 × 8,628.23
  4. Step 4: Simplify right side
    15,701.39x = 186,955,969.95
  5. Step 5: Solve for x
    x = 186,955,969.95/15,701.39
  6. Step 6: Final answer
    x = 11,906.97

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Double scale
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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.