Home / 9,330.80-12,879.15-6,146.42

Finding the Fourth Proportional to 9,330.80, 12,879.15 and 6,146.42

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Solution

The fourth proportional to 9,330.80, 12,879.15 and 6,146.42 is: 8,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.80 : 12,879.15 = 6,146.42 : x
  2. Step 2: Convert to fraction form
    9,330.80/12,879.15 = 6,146.42/x
  3. Step 3: Cross multiply
    9,330.80x = 12,879.15 × 6,146.42
  4. Step 4: Simplify right side
    9,330.80x = 79,160,665.14
  5. Step 5: Solve for x
    x = 79,160,665.14/9,330.80
  6. Step 6: Final answer
    x = 8,483.80

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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.