Home / 7,714.16-11,571.23-1,870.77

Finding the Fourth Proportional to 7,714.16, 11,571.23 and 1,870.77

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Solution

The fourth proportional to 7,714.16, 11,571.23 and 1,870.77 is: 2,806.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.16 : 11,571.23 = 1,870.77 : x
  2. Step 2: Convert to fraction form
    7,714.16/11,571.23 = 1,870.77/x
  3. Step 3: Cross multiply
    7,714.16x = 11,571.23 × 1,870.77
  4. Step 4: Simplify right side
    7,714.16x = 21,647,109.95
  5. Step 5: Solve for x
    x = 21,647,109.95/7,714.16
  6. Step 6: Final answer
    x = 2,806.15

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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.