Home / 13,924.90-20,866.96-7,983.55

Finding the Fourth Proportional to 13,924.90, 20,866.96 and 7,983.55

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Solution

The fourth proportional to 13,924.90, 20,866.96 and 7,983.55 is: 11,963.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.90 : 20,866.96 = 7,983.55 : x
  2. Step 2: Convert to fraction form
    13,924.90/20,866.96 = 7,983.55/x
  3. Step 3: Cross multiply
    13,924.90x = 20,866.96 × 7,983.55
  4. Step 4: Simplify right side
    13,924.90x = 166,592,418.51
  5. Step 5: Solve for x
    x = 166,592,418.51/13,924.90
  6. Step 6: Final answer
    x = 11,963.63

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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.