Home / 9,327.21-12,877.76-7,169.94

Finding the Fourth Proportional to 9,327.21, 12,877.76 and 7,169.94

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Solution

The fourth proportional to 9,327.21, 12,877.76 and 7,169.94 is: 9,899.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.21 : 12,877.76 = 7,169.94 : x
  2. Step 2: Convert to fraction form
    9,327.21/12,877.76 = 7,169.94/x
  3. Step 3: Cross multiply
    9,327.21x = 12,877.76 × 7,169.94
  4. Step 4: Simplify right side
    9,327.21x = 92,332,730.68
  5. Step 5: Solve for x
    x = 92,332,730.68/9,327.21
  6. Step 6: Final answer
    x = 9,899.29

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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.