Home / 8,151.21-12,225.42-2,306.43

Finding the Fourth Proportional to 8,151.21, 12,225.42 and 2,306.43

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Solution

The fourth proportional to 8,151.21, 12,225.42 and 2,306.43 is: 3,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.21 : 12,225.42 = 2,306.43 : x
  2. Step 2: Convert to fraction form
    8,151.21/12,225.42 = 2,306.43/x
  3. Step 3: Cross multiply
    8,151.21x = 12,225.42 × 2,306.43
  4. Step 4: Simplify right side
    8,151.21x = 28,197,075.45
  5. Step 5: Solve for x
    x = 28,197,075.45/8,151.21
  6. Step 6: Final answer
    x = 3,459.25

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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.