Home / 12,569.45-18,858.11-5,177.39

Finding the Fourth Proportional to 12,569.45, 18,858.11 and 5,177.39

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Solution

The fourth proportional to 12,569.45, 18,858.11 and 5,177.39 is: 7,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,569.45 : 18,858.11 = 5,177.39 : x
  2. Step 2: Convert to fraction form
    12,569.45/18,858.11 = 5,177.39/x
  3. Step 3: Cross multiply
    12,569.45x = 18,858.11 × 5,177.39
  4. Step 4: Simplify right side
    12,569.45x = 97,635,669.96
  5. Step 5: Solve for x
    x = 97,635,669.96/12,569.45
  6. Step 6: Final answer
    x = 7,767.70

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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.