Home / 9,327.20-12,871.21-5,078.18

Finding the Fourth Proportional to 9,327.20, 12,871.21 and 5,078.18

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Solution

The fourth proportional to 9,327.20, 12,871.21 and 5,078.18 is: 7,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.20 : 12,871.21 = 5,078.18 : x
  2. Step 2: Convert to fraction form
    9,327.20/12,871.21 = 5,078.18/x
  3. Step 3: Cross multiply
    9,327.20x = 12,871.21 × 5,078.18
  4. Step 4: Simplify right side
    9,327.20x = 65,362,295.81
  5. Step 5: Solve for x
    x = 65,362,295.81/9,327.20
  6. Step 6: Final answer
    x = 7,007.71

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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.