Home / 7,868.32-11,803.61-2,871.18

Finding the Fourth Proportional to 7,868.32, 11,803.61 and 2,871.18

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Solution

The fourth proportional to 7,868.32, 11,803.61 and 2,871.18 is: 4,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.32 : 11,803.61 = 2,871.18 : x
  2. Step 2: Convert to fraction form
    7,868.32/11,803.61 = 2,871.18/x
  3. Step 3: Cross multiply
    7,868.32x = 11,803.61 × 2,871.18
  4. Step 4: Simplify right side
    7,868.32x = 33,890,296.14
  5. Step 5: Solve for x
    x = 33,890,296.14/7,868.32
  6. Step 6: Final answer
    x = 4,307.18

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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.