Home / 15,553.17-21,462.84-8,838.68

Finding the Fourth Proportional to 15,553.17, 21,462.84 and 8,838.68

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Solution

The fourth proportional to 15,553.17, 21,462.84 and 8,838.68 is: 12,197.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.17 : 21,462.84 = 8,838.68 : x
  2. Step 2: Convert to fraction form
    15,553.17/21,462.84 = 8,838.68/x
  3. Step 3: Cross multiply
    15,553.17x = 21,462.84 × 8,838.68
  4. Step 4: Simplify right side
    15,553.17x = 189,703,067.34
  5. Step 5: Solve for x
    x = 189,703,067.34/15,553.17
  6. Step 6: Final answer
    x = 12,197.07

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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.