Home / 14,887.06-20,542.89-8,172.66

Finding the Fourth Proportional to 14,887.06, 20,542.89 and 8,172.66

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Solution

The fourth proportional to 14,887.06, 20,542.89 and 8,172.66 is: 11,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,887.06 : 20,542.89 = 8,172.66 : x
  2. Step 2: Convert to fraction form
    14,887.06/20,542.89 = 8,172.66/x
  3. Step 3: Cross multiply
    14,887.06x = 20,542.89 × 8,172.66
  4. Step 4: Simplify right side
    14,887.06x = 167,890,055.39
  5. Step 5: Solve for x
    x = 167,890,055.39/14,887.06
  6. Step 6: Final answer
    x = 11,277.58

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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.