Home / 12,553.68-18,815.76-5,154.48

Finding the Fourth Proportional to 12,553.68, 18,815.76 and 5,154.48

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Solution

The fourth proportional to 12,553.68, 18,815.76 and 5,154.48 is: 7,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.68 : 18,815.76 = 5,154.48 : x
  2. Step 2: Convert to fraction form
    12,553.68/18,815.76 = 5,154.48/x
  3. Step 3: Cross multiply
    12,553.68x = 18,815.76 × 5,154.48
  4. Step 4: Simplify right side
    12,553.68x = 96,985,458.60
  5. Step 5: Solve for x
    x = 96,985,458.60/12,553.68
  6. Step 6: Final answer
    x = 7,725.66

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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.