Home / 15,667.70-21,621.01-9,294.26

Finding the Fourth Proportional to 15,667.70, 21,621.01 and 9,294.26

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Solution

The fourth proportional to 15,667.70, 21,621.01 and 9,294.26 is: 12,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,667.70 : 21,621.01 = 9,294.26 : x
  2. Step 2: Convert to fraction form
    15,667.70/21,621.01 = 9,294.26/x
  3. Step 3: Cross multiply
    15,667.70x = 21,621.01 × 9,294.26
  4. Step 4: Simplify right side
    15,667.70x = 200,951,288.40
  5. Step 5: Solve for x
    x = 200,951,288.40/15,667.70
  6. Step 6: Final answer
    x = 12,825.83

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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.