Home / 12,930.08-19,395.36-4,165.76

Finding the Fourth Proportional to 12,930.08, 19,395.36 and 4,165.76

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Solution

The fourth proportional to 12,930.08, 19,395.36 and 4,165.76 is: 6,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.08 : 19,395.36 = 4,165.76 : x
  2. Step 2: Convert to fraction form
    12,930.08/19,395.36 = 4,165.76/x
  3. Step 3: Cross multiply
    12,930.08x = 19,395.36 × 4,165.76
  4. Step 4: Simplify right side
    12,930.08x = 80,796,414.87
  5. Step 5: Solve for x
    x = 80,796,414.87/12,930.08
  6. Step 6: Final answer
    x = 6,248.72

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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.