Home / 8,667.36-11,961.56-6,539.15

Finding the Fourth Proportional to 8,667.36, 11,961.56 and 6,539.15

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Solution

The fourth proportional to 8,667.36, 11,961.56 and 6,539.15 is: 9,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.36 : 11,961.56 = 6,539.15 : x
  2. Step 2: Convert to fraction form
    8,667.36/11,961.56 = 6,539.15/x
  3. Step 3: Cross multiply
    8,667.36x = 11,961.56 × 6,539.15
  4. Step 4: Simplify right side
    8,667.36x = 78,218,342.57
  5. Step 5: Solve for x
    x = 78,218,342.57/8,667.36
  6. Step 6: Final answer
    x = 9,024.47

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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.