Home / 8,190.72-12,284.46-2,347.92

Finding the Fourth Proportional to 8,190.72, 12,284.46 and 2,347.92

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Solution

The fourth proportional to 8,190.72, 12,284.46 and 2,347.92 is: 3,521.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.72 : 12,284.46 = 2,347.92 : x
  2. Step 2: Convert to fraction form
    8,190.72/12,284.46 = 2,347.92/x
  3. Step 3: Cross multiply
    8,190.72x = 12,284.46 × 2,347.92
  4. Step 4: Simplify right side
    8,190.72x = 28,842,929.32
  5. Step 5: Solve for x
    x = 28,842,929.32/8,190.72
  6. Step 6: Final answer
    x = 3,521.42

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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.