Home / 12,114.24-18,142.20-6,904.32

Finding the Fourth Proportional to 12,114.24, 18,142.20 and 6,904.32

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Solution

The fourth proportional to 12,114.24, 18,142.20 and 6,904.32 is: 10,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.24 : 18,142.20 = 6,904.32 : x
  2. Step 2: Convert to fraction form
    12,114.24/18,142.20 = 6,904.32/x
  3. Step 3: Cross multiply
    12,114.24x = 18,142.20 × 6,904.32
  4. Step 4: Simplify right side
    12,114.24x = 125,259,554.30
  5. Step 5: Solve for x
    x = 125,259,554.30/12,114.24
  6. Step 6: Final answer
    x = 10,339.86

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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.