Home / 7,715.76-11,568.47-3,550.13

Finding the Fourth Proportional to 7,715.76, 11,568.47 and 3,550.13

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Solution

The fourth proportional to 7,715.76, 11,568.47 and 3,550.13 is: 5,322.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.76 : 11,568.47 = 3,550.13 : x
  2. Step 2: Convert to fraction form
    7,715.76/11,568.47 = 3,550.13/x
  3. Step 3: Cross multiply
    7,715.76x = 11,568.47 × 3,550.13
  4. Step 4: Simplify right side
    7,715.76x = 41,069,560.16
  5. Step 5: Solve for x
    x = 41,069,560.16/7,715.76
  6. Step 6: Final answer
    x = 5,322.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.