Home / 19,354.08-28,981.88-12,760.26

Finding the Fourth Proportional to 19,354.08, 28,981.88 and 12,760.26

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Solution

The fourth proportional to 19,354.08, 28,981.88 and 12,760.26 is: 19,107.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,354.08 : 28,981.88 = 12,760.26 : x
  2. Step 2: Convert to fraction form
    19,354.08/28,981.88 = 12,760.26/x
  3. Step 3: Cross multiply
    19,354.08x = 28,981.88 × 12,760.26
  4. Step 4: Simplify right side
    19,354.08x = 369,816,324.09
  5. Step 5: Solve for x
    x = 369,816,324.09/19,354.08
  6. Step 6: Final answer
    x = 19,107.93

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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.