Home / 12,114.08-18,139.96-6,841.21

Finding the Fourth Proportional to 12,114.08, 18,139.96 and 6,841.21

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Solution

The fourth proportional to 12,114.08, 18,139.96 and 6,841.21 is: 10,244.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.08 : 18,139.96 = 6,841.21 : x
  2. Step 2: Convert to fraction form
    12,114.08/18,139.96 = 6,841.21/x
  3. Step 3: Cross multiply
    12,114.08x = 18,139.96 × 6,841.21
  4. Step 4: Simplify right side
    12,114.08x = 124,099,275.75
  5. Step 5: Solve for x
    x = 124,099,275.75/12,114.08
  6. Step 6: Final answer
    x = 10,244.22

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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.