Home / 11,395.82-15,726.84-6,681.62

Finding the Fourth Proportional to 11,395.82, 15,726.84 and 6,681.62

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Solution

The fourth proportional to 11,395.82, 15,726.84 and 6,681.62 is: 9,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.82 : 15,726.84 = 6,681.62 : x
  2. Step 2: Convert to fraction form
    11,395.82/15,726.84 = 6,681.62/x
  3. Step 3: Cross multiply
    11,395.82x = 15,726.84 × 6,681.62
  4. Step 4: Simplify right side
    11,395.82x = 105,080,656.64
  5. Step 5: Solve for x
    x = 105,080,656.64/11,395.82
  6. Step 6: Final answer
    x = 9,220.99

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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.