Home / 12,172.08-16,795.56-6,866.82

Finding the Fourth Proportional to 12,172.08, 16,795.56 and 6,866.82

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Solution

The fourth proportional to 12,172.08, 16,795.56 and 6,866.82 is: 9,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.08 : 16,795.56 = 6,866.82 : x
  2. Step 2: Convert to fraction form
    12,172.08/16,795.56 = 6,866.82/x
  3. Step 3: Cross multiply
    12,172.08x = 16,795.56 × 6,866.82
  4. Step 4: Simplify right side
    12,172.08x = 115,332,087.32
  5. Step 5: Solve for x
    x = 115,332,087.32/12,172.08
  6. Step 6: Final answer
    x = 9,475.13

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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.