Home / 7,869.18-11,811.06-3,976.32

Finding the Fourth Proportional to 7,869.18, 11,811.06 and 3,976.32

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Solution

The fourth proportional to 7,869.18, 11,811.06 and 3,976.32 is: 5,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.18 : 11,811.06 = 3,976.32 : x
  2. Step 2: Convert to fraction form
    7,869.18/11,811.06 = 3,976.32/x
  3. Step 3: Cross multiply
    7,869.18x = 11,811.06 × 3,976.32
  4. Step 4: Simplify right side
    7,869.18x = 46,964,554.10
  5. Step 5: Solve for x
    x = 46,964,554.10/7,869.18
  6. Step 6: Final answer
    x = 5,968.16

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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.