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Finding the Fourth Proportional to 9,340.94, 12,888.26 and 5,306.88

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Solution

The fourth proportional to 9,340.94, 12,888.26 and 5,306.88 is: 7,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.94 : 12,888.26 = 5,306.88 : x
  2. Step 2: Convert to fraction form
    9,340.94/12,888.26 = 5,306.88/x
  3. Step 3: Cross multiply
    9,340.94x = 12,888.26 × 5,306.88
  4. Step 4: Simplify right side
    9,340.94x = 68,396,422.69
  5. Step 5: Solve for x
    x = 68,396,422.69/9,340.94
  6. Step 6: Final answer
    x = 7,322.22

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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.