Home / 18,139.42-25,015.67-12,093.13

Finding the Fourth Proportional to 18,139.42, 25,015.67 and 12,093.13

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Solution

The fourth proportional to 18,139.42, 25,015.67 and 12,093.13 is: 16,677.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.42 : 25,015.67 = 12,093.13 : x
  2. Step 2: Convert to fraction form
    18,139.42/25,015.67 = 12,093.13/x
  3. Step 3: Cross multiply
    18,139.42x = 25,015.67 × 12,093.13
  4. Step 4: Simplify right side
    18,139.42x = 302,517,688.88
  5. Step 5: Solve for x
    x = 302,517,688.88/18,139.42
  6. Step 6: Final answer
    x = 16,677.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.