Home / 8,667.75-11,961.47-4,688.85

Finding the Fourth Proportional to 8,667.75, 11,961.47 and 4,688.85

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Solution

The fourth proportional to 8,667.75, 11,961.47 and 4,688.85 is: 6,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.75 : 11,961.47 = 4,688.85 : x
  2. Step 2: Convert to fraction form
    8,667.75/11,961.47 = 4,688.85/x
  3. Step 3: Cross multiply
    8,667.75x = 11,961.47 × 4,688.85
  4. Step 4: Simplify right side
    8,667.75x = 56,085,595.19
  5. Step 5: Solve for x
    x = 56,085,595.19/8,667.75
  6. Step 6: Final answer
    x = 6,470.60

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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.