Home / 8,190.39-12,287.34-2,925.66

Finding the Fourth Proportional to 8,190.39, 12,287.34 and 2,925.66

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Solution

The fourth proportional to 8,190.39, 12,287.34 and 2,925.66 is: 4,389.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.39 : 12,287.34 = 2,925.66 : x
  2. Step 2: Convert to fraction form
    8,190.39/12,287.34 = 2,925.66/x
  3. Step 3: Cross multiply
    8,190.39x = 12,287.34 × 2,925.66
  4. Step 4: Simplify right side
    8,190.39x = 35,948,579.14
  5. Step 5: Solve for x
    x = 35,948,579.14/8,190.39
  6. Step 6: Final answer
    x = 4,389.12

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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.