Home / 7,726.23-10,662.15-4,189.44

Finding the Fourth Proportional to 7,726.23, 10,662.15 and 4,189.44

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Solution

The fourth proportional to 7,726.23, 10,662.15 and 4,189.44 is: 5,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.23 : 10,662.15 = 4,189.44 : x
  2. Step 2: Convert to fraction form
    7,726.23/10,662.15 = 4,189.44/x
  3. Step 3: Cross multiply
    7,726.23x = 10,662.15 × 4,189.44
  4. Step 4: Simplify right side
    7,726.23x = 44,668,437.70
  5. Step 5: Solve for x
    x = 44,668,437.70/7,726.23
  6. Step 6: Final answer
    x = 5,781.40

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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.