Home / 19,070.91-28,614.23-8,391.78

Finding the Fourth Proportional to 19,070.91, 28,614.23 and 8,391.78

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Solution

The fourth proportional to 19,070.91, 28,614.23 and 8,391.78 is: 12,591.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.91 : 28,614.23 = 8,391.78 : x
  2. Step 2: Convert to fraction form
    19,070.91/28,614.23 = 8,391.78/x
  3. Step 3: Cross multiply
    19,070.91x = 28,614.23 × 8,391.78
  4. Step 4: Simplify right side
    19,070.91x = 240,124,323.03
  5. Step 5: Solve for x
    x = 240,124,323.03/19,070.91
  6. Step 6: Final answer
    x = 12,591.13

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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.