Home / 15,701.16-21,667.62-8,531.04

Finding the Fourth Proportional to 15,701.16, 21,667.62 and 8,531.04

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Solution

The fourth proportional to 15,701.16, 21,667.62 and 8,531.04 is: 11,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.16 : 21,667.62 = 8,531.04 : x
  2. Step 2: Convert to fraction form
    15,701.16/21,667.62 = 8,531.04/x
  3. Step 3: Cross multiply
    15,701.16x = 21,667.62 × 8,531.04
  4. Step 4: Simplify right side
    15,701.16x = 184,847,332.92
  5. Step 5: Solve for x
    x = 184,847,332.92/15,701.16
  6. Step 6: Final answer
    x = 11,772.85

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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.