Home / 11,423.73-15,763.68-6,387.25

Finding the Fourth Proportional to 11,423.73, 15,763.68 and 6,387.25

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Solution

The fourth proportional to 11,423.73, 15,763.68 and 6,387.25 is: 8,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.73 : 15,763.68 = 6,387.25 : x
  2. Step 2: Convert to fraction form
    11,423.73/15,763.68 = 6,387.25/x
  3. Step 3: Cross multiply
    11,423.73x = 15,763.68 × 6,387.25
  4. Step 4: Simplify right side
    11,423.73x = 100,686,565.08
  5. Step 5: Solve for x
    x = 100,686,565.08/11,423.73
  6. Step 6: Final answer
    x = 8,813.81

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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.