Home / 12,074.76-18,115.14-4,284.36

Finding the Fourth Proportional to 12,074.76, 18,115.14 and 4,284.36

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Solution

The fourth proportional to 12,074.76, 18,115.14 and 4,284.36 is: 6,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.76 : 18,115.14 = 4,284.36 : x
  2. Step 2: Convert to fraction form
    12,074.76/18,115.14 = 4,284.36/x
  3. Step 3: Cross multiply
    12,074.76x = 18,115.14 × 4,284.36
  4. Step 4: Simplify right side
    12,074.76x = 77,611,781.21
  5. Step 5: Solve for x
    x = 77,611,781.21/12,074.76
  6. Step 6: Final answer
    x = 6,427.60

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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.