Home / 8,667.28-11,960.80-4,688.36

Finding the Fourth Proportional to 8,667.28, 11,960.80 and 4,688.36

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Solution

The fourth proportional to 8,667.28, 11,960.80 and 4,688.36 is: 6,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.28 : 11,960.80 = 4,688.36 : x
  2. Step 2: Convert to fraction form
    8,667.28/11,960.80 = 4,688.36/x
  3. Step 3: Cross multiply
    8,667.28x = 11,960.80 × 4,688.36
  4. Step 4: Simplify right side
    8,667.28x = 56,076,536.29
  5. Step 5: Solve for x
    x = 56,076,536.29/8,667.28
  6. Step 6: Final answer
    x = 6,469.91

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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.