Home / 8,214.72-12,322.75-3,281.66

Finding the Fourth Proportional to 8,214.72, 12,322.75 and 3,281.66

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Solution

The fourth proportional to 8,214.72, 12,322.75 and 3,281.66 is: 4,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.72 : 12,322.75 = 3,281.66 : x
  2. Step 2: Convert to fraction form
    8,214.72/12,322.75 = 3,281.66/x
  3. Step 3: Cross multiply
    8,214.72x = 12,322.75 × 3,281.66
  4. Step 4: Simplify right side
    8,214.72x = 40,439,075.77
  5. Step 5: Solve for x
    x = 40,439,075.77/8,214.72
  6. Step 6: Final answer
    x = 4,922.76

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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.