Home / 14,449.50-19,940.34-8,161.74

Finding the Fourth Proportional to 14,449.50, 19,940.34 and 8,161.74

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Solution

The fourth proportional to 14,449.50, 19,940.34 and 8,161.74 is: 11,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,449.50 : 19,940.34 = 8,161.74 : x
  2. Step 2: Convert to fraction form
    14,449.50/19,940.34 = 8,161.74/x
  3. Step 3: Cross multiply
    14,449.50x = 19,940.34 × 8,161.74
  4. Step 4: Simplify right side
    14,449.50x = 162,747,870.59
  5. Step 5: Solve for x
    x = 162,747,870.59/14,449.50
  6. Step 6: Final answer
    x = 11,263.22

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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.