Home / 15,789.61-23,678.52-5,791.12

Finding the Fourth Proportional to 15,789.61, 23,678.52 and 5,791.12

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Solution

The fourth proportional to 15,789.61, 23,678.52 and 5,791.12 is: 8,684.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.61 : 23,678.52 = 5,791.12 : x
  2. Step 2: Convert to fraction form
    15,789.61/23,678.52 = 5,791.12/x
  3. Step 3: Cross multiply
    15,789.61x = 23,678.52 × 5,791.12
  4. Step 4: Simplify right side
    15,789.61x = 137,125,150.74
  5. Step 5: Solve for x
    x = 137,125,150.74/15,789.61
  6. Step 6: Final answer
    x = 8,684.52

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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.