Home / 7,712.16-11,568.30-1,868.82

Finding the Fourth Proportional to 7,712.16, 11,568.30 and 1,868.82

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Solution

The fourth proportional to 7,712.16, 11,568.30 and 1,868.82 is: 2,803.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.16 : 11,568.30 = 1,868.82 : x
  2. Step 2: Convert to fraction form
    7,712.16/11,568.30 = 1,868.82/x
  3. Step 3: Cross multiply
    7,712.16x = 11,568.30 × 1,868.82
  4. Step 4: Simplify right side
    7,712.16x = 21,619,070.41
  5. Step 5: Solve for x
    x = 21,619,070.41/7,712.16
  6. Step 6: Final answer
    x = 2,803.24

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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.