Home / 7,239.11-9,991.67-4,716.86

Finding the Fourth Proportional to 7,239.11, 9,991.67 and 4,716.86

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Solution

The fourth proportional to 7,239.11, 9,991.67 and 4,716.86 is: 6,510.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.11 : 9,991.67 = 4,716.86 : x
  2. Step 2: Convert to fraction form
    7,239.11/9,991.67 = 4,716.86/x
  3. Step 3: Cross multiply
    7,239.11x = 9,991.67 × 4,716.86
  4. Step 4: Simplify right side
    7,239.11x = 47,129,235.01
  5. Step 5: Solve for x
    x = 47,129,235.01/7,239.11
  6. Step 6: Final answer
    x = 6,510.37

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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.