Home / 19,192.52-28,776.36-9,191.90

Finding the Fourth Proportional to 19,192.52, 28,776.36 and 9,191.90

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Solution

The fourth proportional to 19,192.52, 28,776.36 and 9,191.90 is: 13,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.52 : 28,776.36 = 9,191.90 : x
  2. Step 2: Convert to fraction form
    19,192.52/28,776.36 = 9,191.90/x
  3. Step 3: Cross multiply
    19,192.52x = 28,776.36 × 9,191.90
  4. Step 4: Simplify right side
    19,192.52x = 264,509,423.48
  5. Step 5: Solve for x
    x = 264,509,423.48/19,192.52
  6. Step 6: Final answer
    x = 13,781.90

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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.