Home / 9,327.36-12,871.92-5,135.52

Finding the Fourth Proportional to 9,327.36, 12,871.92 and 5,135.52

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Solution

The fourth proportional to 9,327.36, 12,871.92 and 5,135.52 is: 7,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.36 : 12,871.92 = 5,135.52 : x
  2. Step 2: Convert to fraction form
    9,327.36/12,871.92 = 5,135.52/x
  3. Step 3: Cross multiply
    9,327.36x = 12,871.92 × 5,135.52
  4. Step 4: Simplify right side
    9,327.36x = 66,104,002.60
  5. Step 5: Solve for x
    x = 66,104,002.60/9,327.36
  6. Step 6: Final answer
    x = 7,087.11

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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.