Home / 11,331.62-15,637.77-6,855.86

Finding the Fourth Proportional to 11,331.62, 15,637.77 and 6,855.86

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Solution

The fourth proportional to 11,331.62, 15,637.77 and 6,855.86 is: 9,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.62 : 15,637.77 = 6,855.86 : x
  2. Step 2: Convert to fraction form
    11,331.62/15,637.77 = 6,855.86/x
  3. Step 3: Cross multiply
    11,331.62x = 15,637.77 × 6,855.86
  4. Step 4: Simplify right side
    11,331.62x = 107,210,361.83
  5. Step 5: Solve for x
    x = 107,210,361.83/11,331.62
  6. Step 6: Final answer
    x = 9,461.17

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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.