Home / 9,364.06-12,922.39-5,172.31

Finding the Fourth Proportional to 9,364.06, 12,922.39 and 5,172.31

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Solution

The fourth proportional to 9,364.06, 12,922.39 and 5,172.31 is: 7,137.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.06 : 12,922.39 = 5,172.31 : x
  2. Step 2: Convert to fraction form
    9,364.06/12,922.39 = 5,172.31/x
  3. Step 3: Cross multiply
    9,364.06x = 12,922.39 × 5,172.31
  4. Step 4: Simplify right side
    9,364.06x = 66,838,607.02
  5. Step 5: Solve for x
    x = 66,838,607.02/9,364.06
  6. Step 6: Final answer
    x = 7,137.78

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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.