Home / 7,712.24-11,568.43-1,868.86

Finding the Fourth Proportional to 7,712.24, 11,568.43 and 1,868.86

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Solution

The fourth proportional to 7,712.24, 11,568.43 and 1,868.86 is: 2,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.24 : 11,568.43 = 1,868.86 : x
  2. Step 2: Convert to fraction form
    7,712.24/11,568.43 = 1,868.86/x
  3. Step 3: Cross multiply
    7,712.24x = 11,568.43 × 1,868.86
  4. Step 4: Simplify right side
    7,712.24x = 21,619,718.25
  5. Step 5: Solve for x
    x = 21,619,718.25/7,712.24
  6. Step 6: Final answer
    x = 2,803.30

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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.