Home / 9,187.80-12,679.38-4,996.08

Finding the Fourth Proportional to 9,187.80, 12,679.38 and 4,996.08

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Solution

The fourth proportional to 9,187.80, 12,679.38 and 4,996.08 is: 6,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.80 : 12,679.38 = 4,996.08 : x
  2. Step 2: Convert to fraction form
    9,187.80/12,679.38 = 4,996.08/x
  3. Step 3: Cross multiply
    9,187.80x = 12,679.38 × 4,996.08
  4. Step 4: Simplify right side
    9,187.80x = 63,347,196.83
  5. Step 5: Solve for x
    x = 63,347,196.83/9,187.80
  6. Step 6: Final answer
    x = 6,894.71

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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.