Home / 14,282.78-19,747.87-12,509.31

Finding the Fourth Proportional to 14,282.78, 19,747.87 and 12,509.31

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Solution

The fourth proportional to 14,282.78, 19,747.87 and 12,509.31 is: 17,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.78 : 19,747.87 = 12,509.31 : x
  2. Step 2: Convert to fraction form
    14,282.78/19,747.87 = 12,509.31/x
  3. Step 3: Cross multiply
    14,282.78x = 19,747.87 × 12,509.31
  4. Step 4: Simplify right side
    14,282.78x = 247,032,196.40
  5. Step 5: Solve for x
    x = 247,032,196.40/14,282.78
  6. Step 6: Final answer
    x = 17,295.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.