Home / 9,739.11-13,439.97-5,262.86

Finding the Fourth Proportional to 9,739.11, 13,439.97 and 5,262.86

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Solution

The fourth proportional to 9,739.11, 13,439.97 and 5,262.86 is: 7,262.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,739.11 : 13,439.97 = 5,262.86 : x
  2. Step 2: Convert to fraction form
    9,739.11/13,439.97 = 5,262.86/x
  3. Step 3: Cross multiply
    9,739.11x = 13,439.97 × 5,262.86
  4. Step 4: Simplify right side
    9,739.11x = 70,732,680.51
  5. Step 5: Solve for x
    x = 70,732,680.51/9,739.11
  6. Step 6: Final answer
    x = 7,262.75

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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.