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Finding the Fourth Proportional to 14,295.78, 21,429.82 and 6,393.82

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Solution

The fourth proportional to 14,295.78, 21,429.82 and 6,393.82 is: 9,584.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,295.78 : 21,429.82 = 6,393.82 : x
  2. Step 2: Convert to fraction form
    14,295.78/21,429.82 = 6,393.82/x
  3. Step 3: Cross multiply
    14,295.78x = 21,429.82 × 6,393.82
  4. Step 4: Simplify right side
    14,295.78x = 137,018,411.71
  5. Step 5: Solve for x
    x = 137,018,411.71/14,295.78
  6. Step 6: Final answer
    x = 9,584.54

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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.