Home / 12,071.88-18,110.58-4,280.76

Finding the Fourth Proportional to 12,071.88, 18,110.58 and 4,280.76

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Solution

The fourth proportional to 12,071.88, 18,110.58 and 4,280.76 is: 6,422.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.88 : 18,110.58 = 4,280.76 : x
  2. Step 2: Convert to fraction form
    12,071.88/18,110.58 = 4,280.76/x
  3. Step 3: Cross multiply
    12,071.88x = 18,110.58 × 4,280.76
  4. Step 4: Simplify right side
    12,071.88x = 77,527,046.44
  5. Step 5: Solve for x
    x = 77,527,046.44/12,071.88
  6. Step 6: Final answer
    x = 6,422.12

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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.