Home / 9,327.06-12,871.28-5,135.30

Finding the Fourth Proportional to 9,327.06, 12,871.28 and 5,135.30

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Solution

The fourth proportional to 9,327.06, 12,871.28 and 5,135.30 is: 7,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.06 : 12,871.28 = 5,135.30 : x
  2. Step 2: Convert to fraction form
    9,327.06/12,871.28 = 5,135.30/x
  3. Step 3: Cross multiply
    9,327.06x = 12,871.28 × 5,135.30
  4. Step 4: Simplify right side
    9,327.06x = 66,097,884.18
  5. Step 5: Solve for x
    x = 66,097,884.18/9,327.06
  6. Step 6: Final answer
    x = 7,086.68

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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.