Home / 15,536.20-21,439.32-8,462.68

Finding the Fourth Proportional to 15,536.20, 21,439.32 and 8,462.68

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Solution

The fourth proportional to 15,536.20, 21,439.32 and 8,462.68 is: 11,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.20 : 21,439.32 = 8,462.68 : x
  2. Step 2: Convert to fraction form
    15,536.20/21,439.32 = 8,462.68/x
  3. Step 3: Cross multiply
    15,536.20x = 21,439.32 × 8,462.68
  4. Step 4: Simplify right side
    15,536.20x = 181,434,104.58
  5. Step 5: Solve for x
    x = 181,434,104.58/15,536.20
  6. Step 6: Final answer
    x = 11,678.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.