Home / 8,631.73-11,913.75-6,111.19

Finding the Fourth Proportional to 8,631.73, 11,913.75 and 6,111.19

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Solution

The fourth proportional to 8,631.73, 11,913.75 and 6,111.19 is: 8,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.73 : 11,913.75 = 6,111.19 : x
  2. Step 2: Convert to fraction form
    8,631.73/11,913.75 = 6,111.19/x
  3. Step 3: Cross multiply
    8,631.73x = 11,913.75 × 6,111.19
  4. Step 4: Simplify right side
    8,631.73x = 72,807,189.86
  5. Step 5: Solve for x
    x = 72,807,189.86/8,631.73
  6. Step 6: Final answer
    x = 8,434.83

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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.