Home / 12,307.74-18,466.20-7,380.92

Finding the Fourth Proportional to 12,307.74, 18,466.20 and 7,380.92

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Solution

The fourth proportional to 12,307.74, 18,466.20 and 7,380.92 is: 11,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.74 : 18,466.20 = 7,380.92 : x
  2. Step 2: Convert to fraction form
    12,307.74/18,466.20 = 7,380.92/x
  3. Step 3: Cross multiply
    12,307.74x = 18,466.20 × 7,380.92
  4. Step 4: Simplify right side
    12,307.74x = 136,297,544.90
  5. Step 5: Solve for x
    x = 136,297,544.90/12,307.74
  6. Step 6: Final answer
    x = 11,074.13

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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.