Home / 12,721.64-19,086.60-6,148.56

Finding the Fourth Proportional to 12,721.64, 19,086.60 and 6,148.56

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Solution

The fourth proportional to 12,721.64, 19,086.60 and 6,148.56 is: 9,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.64 : 19,086.60 = 6,148.56 : x
  2. Step 2: Convert to fraction form
    12,721.64/19,086.60 = 6,148.56/x
  3. Step 3: Cross multiply
    12,721.64x = 19,086.60 × 6,148.56
  4. Step 4: Simplify right side
    12,721.64x = 117,355,105.30
  5. Step 5: Solve for x
    x = 117,355,105.30/12,721.64
  6. Step 6: Final answer
    x = 9,224.84

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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.