Home / 7,217.07-9,965.19-5,535.81

Finding the Fourth Proportional to 7,217.07, 9,965.19 and 5,535.81

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Solution

The fourth proportional to 7,217.07, 9,965.19 and 5,535.81 is: 7,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.07 : 9,965.19 = 5,535.81 : x
  2. Step 2: Convert to fraction form
    7,217.07/9,965.19 = 5,535.81/x
  3. Step 3: Cross multiply
    7,217.07x = 9,965.19 × 5,535.81
  4. Step 4: Simplify right side
    7,217.07x = 55,165,398.45
  5. Step 5: Solve for x
    x = 55,165,398.45/7,217.07
  6. Step 6: Final answer
    x = 7,643.74

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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.