Home / 13,997.59-19,315.40-8,331.43

Finding the Fourth Proportional to 13,997.59, 19,315.40 and 8,331.43

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Solution

The fourth proportional to 13,997.59, 19,315.40 and 8,331.43 is: 11,496.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.59 : 19,315.40 = 8,331.43 : x
  2. Step 2: Convert to fraction form
    13,997.59/19,315.40 = 8,331.43/x
  3. Step 3: Cross multiply
    13,997.59x = 19,315.40 × 8,331.43
  4. Step 4: Simplify right side
    13,997.59x = 160,924,903.02
  5. Step 5: Solve for x
    x = 160,924,903.02/13,997.59
  6. Step 6: Final answer
    x = 11,496.61

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1.5x scale

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.