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Finding the Fourth Proportional to 14,239.86, 21,364.36 and 6,844.86

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Solution

The fourth proportional to 14,239.86, 21,364.36 and 6,844.86 is: 10,269.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.86 : 21,364.36 = 6,844.86 : x
  2. Step 2: Convert to fraction form
    14,239.86/21,364.36 = 6,844.86/x
  3. Step 3: Cross multiply
    14,239.86x = 21,364.36 × 6,844.86
  4. Step 4: Simplify right side
    14,239.86x = 146,236,053.19
  5. Step 5: Solve for x
    x = 146,236,053.19/14,239.86
  6. Step 6: Final answer
    x = 10,269.49

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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.