Home / 8,667.66-11,961.38-4,688.76

Finding the Fourth Proportional to 8,667.66, 11,961.38 and 4,688.76

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Solution

The fourth proportional to 8,667.66, 11,961.38 and 4,688.76 is: 6,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.66 : 11,961.38 = 4,688.76 : x
  2. Step 2: Convert to fraction form
    8,667.66/11,961.38 = 4,688.76/x
  3. Step 3: Cross multiply
    8,667.66x = 11,961.38 × 4,688.76
  4. Step 4: Simplify right side
    8,667.66x = 56,084,016.65
  5. Step 5: Solve for x
    x = 56,084,016.65/8,667.66
  6. Step 6: Final answer
    x = 6,470.49

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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.