Home / 15,704.11-21,667.06-9,327.51

Finding the Fourth Proportional to 15,704.11, 21,667.06 and 9,327.51

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Solution

The fourth proportional to 15,704.11, 21,667.06 and 9,327.51 is: 12,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.11 : 21,667.06 = 9,327.51 : x
  2. Step 2: Convert to fraction form
    15,704.11/21,667.06 = 9,327.51/x
  3. Step 3: Cross multiply
    15,704.11x = 21,667.06 × 9,327.51
  4. Step 4: Simplify right side
    15,704.11x = 202,099,784.91
  5. Step 5: Solve for x
    x = 202,099,784.91/15,704.11
  6. Step 6: Final answer
    x = 12,869.23

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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.