Home / 9,739.07-13,436.70-5,489.61

Finding the Fourth Proportional to 9,739.07, 13,436.70 and 5,489.61

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Solution

The fourth proportional to 9,739.07, 13,436.70 and 5,489.61 is: 7,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,739.07 : 13,436.70 = 5,489.61 : x
  2. Step 2: Convert to fraction form
    9,739.07/13,436.70 = 5,489.61/x
  3. Step 3: Cross multiply
    9,739.07x = 13,436.70 × 5,489.61
  4. Step 4: Simplify right side
    9,739.07x = 73,762,242.69
  5. Step 5: Solve for x
    x = 73,762,242.69/9,739.07
  6. Step 6: Final answer
    x = 7,573.85

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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.