Home / 12,012.12-16,581.78-7,297.92

Finding the Fourth Proportional to 12,012.12, 16,581.78 and 7,297.92

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Solution

The fourth proportional to 12,012.12, 16,581.78 and 7,297.92 is: 10,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.12 : 16,581.78 = 7,297.92 : x
  2. Step 2: Convert to fraction form
    12,012.12/16,581.78 = 7,297.92/x
  3. Step 3: Cross multiply
    12,012.12x = 16,581.78 × 7,297.92
  4. Step 4: Simplify right side
    12,012.12x = 121,012,503.90
  5. Step 5: Solve for x
    x = 121,012,503.90/12,012.12
  6. Step 6: Final answer
    x = 10,074.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.