Home / 8,191.10-12,289.23-2,925.99

Finding the Fourth Proportional to 8,191.10, 12,289.23 and 2,925.99

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Solution

The fourth proportional to 8,191.10, 12,289.23 and 2,925.99 is: 4,389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.10 : 12,289.23 = 2,925.99 : x
  2. Step 2: Convert to fraction form
    8,191.10/12,289.23 = 2,925.99/x
  3. Step 3: Cross multiply
    8,191.10x = 12,289.23 × 2,925.99
  4. Step 4: Simplify right side
    8,191.10x = 35,958,164.09
  5. Step 5: Solve for x
    x = 35,958,164.09/8,191.10
  6. Step 6: Final answer
    x = 4,389.91

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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.