Home / 7,716.29-11,574.44-1,872.86

Finding the Fourth Proportional to 7,716.29, 11,574.44 and 1,872.86

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Solution

The fourth proportional to 7,716.29, 11,574.44 and 1,872.86 is: 2,809.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.29 : 11,574.44 = 1,872.86 : x
  2. Step 2: Convert to fraction form
    7,716.29/11,574.44 = 1,872.86/x
  3. Step 3: Cross multiply
    7,716.29x = 11,574.44 × 1,872.86
  4. Step 4: Simplify right side
    7,716.29x = 21,677,238.46
  5. Step 5: Solve for x
    x = 21,677,238.46/7,716.29
  6. Step 6: Final answer
    x = 2,809.28

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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.