Home / 8,743.08-12,068.82-6,403.80

Finding the Fourth Proportional to 8,743.08, 12,068.82 and 6,403.80

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Solution

The fourth proportional to 8,743.08, 12,068.82 and 6,403.80 is: 8,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.08 : 12,068.82 = 6,403.80 : x
  2. Step 2: Convert to fraction form
    8,743.08/12,068.82 = 6,403.80/x
  3. Step 3: Cross multiply
    8,743.08x = 12,068.82 × 6,403.80
  4. Step 4: Simplify right side
    8,743.08x = 77,286,309.52
  5. Step 5: Solve for x
    x = 77,286,309.52/8,743.08
  6. Step 6: Final answer
    x = 8,839.71

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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.