Home / 12,028.35-18,041.95-3,143.68

Finding the Fourth Proportional to 12,028.35, 18,041.95 and 3,143.68

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Solution

The fourth proportional to 12,028.35, 18,041.95 and 3,143.68 is: 4,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,028.35 : 18,041.95 = 3,143.68 : x
  2. Step 2: Convert to fraction form
    12,028.35/18,041.95 = 3,143.68/x
  3. Step 3: Cross multiply
    12,028.35x = 18,041.95 × 3,143.68
  4. Step 4: Simplify right side
    12,028.35x = 56,718,117.38
  5. Step 5: Solve for x
    x = 56,718,117.38/12,028.35
  6. Step 6: Final answer
    x = 4,715.37

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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.