Home / 12,550.09-17,318.97-7,172.47

Finding the Fourth Proportional to 12,550.09, 17,318.97 and 7,172.47

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Solution

The fourth proportional to 12,550.09, 17,318.97 and 7,172.47 is: 9,897.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.09 : 17,318.97 = 7,172.47 : x
  2. Step 2: Convert to fraction form
    12,550.09/17,318.97 = 7,172.47/x
  3. Step 3: Cross multiply
    12,550.09x = 17,318.97 × 7,172.47
  4. Step 4: Simplify right side
    12,550.09x = 124,219,756.89
  5. Step 5: Solve for x
    x = 124,219,756.89/12,550.09
  6. Step 6: Final answer
    x = 9,897.92

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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.