Home / 9,326.52-12,871.38-5,135.56

Finding the Fourth Proportional to 9,326.52, 12,871.38 and 5,135.56

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Solution

The fourth proportional to 9,326.52, 12,871.38 and 5,135.56 is: 7,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.52 : 12,871.38 = 5,135.56 : x
  2. Step 2: Convert to fraction form
    9,326.52/12,871.38 = 5,135.56/x
  3. Step 3: Cross multiply
    9,326.52x = 12,871.38 × 5,135.56
  4. Step 4: Simplify right side
    9,326.52x = 66,101,744.27
  5. Step 5: Solve for x
    x = 66,101,744.27/9,326.52
  6. Step 6: Final answer
    x = 7,087.50

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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.