Home / 15,536.39-21,440.45-8,462.81

Finding the Fourth Proportional to 15,536.39, 21,440.45 and 8,462.81

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Solution

The fourth proportional to 15,536.39, 21,440.45 and 8,462.81 is: 11,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.39 : 21,440.45 = 8,462.81 : x
  2. Step 2: Convert to fraction form
    15,536.39/21,440.45 = 8,462.81/x
  3. Step 3: Cross multiply
    15,536.39x = 21,440.45 × 8,462.81
  4. Step 4: Simplify right side
    15,536.39x = 181,446,481.82
  5. Step 5: Solve for x
    x = 181,446,481.82/15,536.39
  6. Step 6: Final answer
    x = 11,678.81

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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.