Home / 10,922.16-16,384.44-3,131.28

Finding the Fourth Proportional to 10,922.16, 16,384.44 and 3,131.28

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Solution

The fourth proportional to 10,922.16, 16,384.44 and 3,131.28 is: 4,697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922.16 : 16,384.44 = 3,131.28 : x
  2. Step 2: Convert to fraction form
    10,922.16/16,384.44 = 3,131.28/x
  3. Step 3: Cross multiply
    10,922.16x = 16,384.44 × 3,131.28
  4. Step 4: Simplify right side
    10,922.16x = 51,304,269.28
  5. Step 5: Solve for x
    x = 51,304,269.28/10,922.16
  6. Step 6: Final answer
    x = 4,697.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.