Home / 9,327.22-12,871.58-5,135.47

Finding the Fourth Proportional to 9,327.22, 12,871.58 and 5,135.47

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Solution

The fourth proportional to 9,327.22, 12,871.58 and 5,135.47 is: 7,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.22 : 12,871.58 = 5,135.47 : x
  2. Step 2: Convert to fraction form
    9,327.22/12,871.58 = 5,135.47/x
  3. Step 3: Cross multiply
    9,327.22x = 12,871.58 × 5,135.47
  4. Step 4: Simplify right side
    9,327.22x = 66,101,587.27
  5. Step 5: Solve for x
    x = 66,101,587.27/9,327.22
  6. Step 6: Final answer
    x = 7,086.95

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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.