Home / 8,667.79-11,961.47-4,688.87

Finding the Fourth Proportional to 8,667.79, 11,961.47 and 4,688.87

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Solution

The fourth proportional to 8,667.79, 11,961.47 and 4,688.87 is: 6,470.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.79 : 11,961.47 = 4,688.87 : x
  2. Step 2: Convert to fraction form
    8,667.79/11,961.47 = 4,688.87/x
  3. Step 3: Cross multiply
    8,667.79x = 11,961.47 × 4,688.87
  4. Step 4: Simplify right side
    8,667.79x = 56,085,729.75
  5. Step 5: Solve for x
    x = 56,085,729.75/8,667.79
  6. Step 6: Final answer
    x = 6,470.59

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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.