Home / 13,887.59-19,161.90-8,224.11

Finding the Fourth Proportional to 13,887.59, 19,161.90 and 8,224.11

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Solution

The fourth proportional to 13,887.59, 19,161.90 and 8,224.11 is: 11,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.59 : 19,161.90 = 8,224.11 : x
  2. Step 2: Convert to fraction form
    13,887.59/19,161.90 = 8,224.11/x
  3. Step 3: Cross multiply
    13,887.59x = 19,161.90 × 8,224.11
  4. Step 4: Simplify right side
    13,887.59x = 157,589,573.41
  5. Step 5: Solve for x
    x = 157,589,573.41/13,887.59
  6. Step 6: Final answer
    x = 11,347.51

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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.