Home / 9,729.06-13,425.08-5,479.44

Finding the Fourth Proportional to 9,729.06, 13,425.08 and 5,479.44

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Solution

The fourth proportional to 9,729.06, 13,425.08 and 5,479.44 is: 7,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.06 : 13,425.08 = 5,479.44 : x
  2. Step 2: Convert to fraction form
    9,729.06/13,425.08 = 5,479.44/x
  3. Step 3: Cross multiply
    9,729.06x = 13,425.08 × 5,479.44
  4. Step 4: Simplify right side
    9,729.06x = 73,561,892.96
  5. Step 5: Solve for x
    x = 73,561,892.96/9,729.06
  6. Step 6: Final answer
    x = 7,561.05

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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.