Home / 12,930.29-19,395.45-4,166.51

Finding the Fourth Proportional to 12,930.29, 19,395.45 and 4,166.51

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Solution

The fourth proportional to 12,930.29, 19,395.45 and 4,166.51 is: 6,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.29 : 19,395.45 = 4,166.51 : x
  2. Step 2: Convert to fraction form
    12,930.29/19,395.45 = 4,166.51/x
  3. Step 3: Cross multiply
    12,930.29x = 19,395.45 × 4,166.51
  4. Step 4: Simplify right side
    12,930.29x = 80,811,336.38
  5. Step 5: Solve for x
    x = 80,811,336.38/12,930.29
  6. Step 6: Final answer
    x = 6,249.77

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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.