Home / 7,935.10-11,868.63-7,722.88

Finding the Fourth Proportional to 7,935.10, 11,868.63 and 7,722.88

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Solution

The fourth proportional to 7,935.10, 11,868.63 and 7,722.88 is: 11,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.10 : 11,868.63 = 7,722.88 : x
  2. Step 2: Convert to fraction form
    7,935.10/11,868.63 = 7,722.88/x
  3. Step 3: Cross multiply
    7,935.10x = 11,868.63 × 7,722.88
  4. Step 4: Simplify right side
    7,935.10x = 91,660,005.25
  5. Step 5: Solve for x
    x = 91,660,005.25/7,935.10
  6. Step 6: Final answer
    x = 11,551.21

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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.