Home / 15,553.14-21,462.30-8,838.66

Finding the Fourth Proportional to 15,553.14, 21,462.30 and 8,838.66

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Solution

The fourth proportional to 15,553.14, 21,462.30 and 8,838.66 is: 12,196.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.14 : 21,462.30 = 8,838.66 : x
  2. Step 2: Convert to fraction form
    15,553.14/21,462.30 = 8,838.66/x
  3. Step 3: Cross multiply
    15,553.14x = 21,462.30 × 8,838.66
  4. Step 4: Simplify right side
    15,553.14x = 189,697,972.52
  5. Step 5: Solve for x
    x = 189,697,972.52/15,553.14
  6. Step 6: Final answer
    x = 12,196.76

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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.