Home / 12,764.32-19,144.08-6,838.72

Finding the Fourth Proportional to 12,764.32, 19,144.08 and 6,838.72

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Solution

The fourth proportional to 12,764.32, 19,144.08 and 6,838.72 is: 10,256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.32 : 19,144.08 = 6,838.72 : x
  2. Step 2: Convert to fraction form
    12,764.32/19,144.08 = 6,838.72/x
  3. Step 3: Cross multiply
    12,764.32x = 19,144.08 × 6,838.72
  4. Step 4: Simplify right side
    12,764.32x = 130,921,002.78
  5. Step 5: Solve for x
    x = 130,921,002.78/12,764.32
  6. Step 6: Final answer
    x = 10,256.79

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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.