Home / 12,972.08-19,458.42-4,651.92

Finding the Fourth Proportional to 12,972.08, 19,458.42 and 4,651.92

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Solution

The fourth proportional to 12,972.08, 19,458.42 and 4,651.92 is: 6,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.08 : 19,458.42 = 4,651.92 : x
  2. Step 2: Convert to fraction form
    12,972.08/19,458.42 = 4,651.92/x
  3. Step 3: Cross multiply
    12,972.08x = 19,458.42 × 4,651.92
  4. Step 4: Simplify right side
    12,972.08x = 90,519,013.17
  5. Step 5: Solve for x
    x = 90,519,013.17/12,972.08
  6. Step 6: Final answer
    x = 6,977.99

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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.