Home / 12,039.78-18,059.67-3,275.99

Finding the Fourth Proportional to 12,039.78, 18,059.67 and 3,275.99

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Solution

The fourth proportional to 12,039.78, 18,059.67 and 3,275.99 is: 4,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.78 : 18,059.67 = 3,275.99 : x
  2. Step 2: Convert to fraction form
    12,039.78/18,059.67 = 3,275.99/x
  3. Step 3: Cross multiply
    12,039.78x = 18,059.67 × 3,275.99
  4. Step 4: Simplify right side
    12,039.78x = 59,163,208.02
  5. Step 5: Solve for x
    x = 59,163,208.02/12,039.78
  6. Step 6: Final answer
    x = 4,913.98

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Similar ratio
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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.