Home / 7,687.63-11,531.44-2,215.63

Finding the Fourth Proportional to 7,687.63, 11,531.44 and 2,215.63

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Solution

The fourth proportional to 7,687.63, 11,531.44 and 2,215.63 is: 3,323.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.63 : 11,531.44 = 2,215.63 : x
  2. Step 2: Convert to fraction form
    7,687.63/11,531.44 = 2,215.63/x
  3. Step 3: Cross multiply
    7,687.63x = 11,531.44 × 2,215.63
  4. Step 4: Simplify right side
    7,687.63x = 25,549,341.21
  5. Step 5: Solve for x
    x = 25,549,341.21/7,687.63
  6. Step 6: Final answer
    x = 3,323.44

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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.