Home / 16,756.82-23,121.78-9,681.88

Finding the Fourth Proportional to 16,756.82, 23,121.78 and 9,681.88

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Solution

The fourth proportional to 16,756.82, 23,121.78 and 9,681.88 is: 13,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,756.82 : 23,121.78 = 9,681.88 : x
  2. Step 2: Convert to fraction form
    16,756.82/23,121.78 = 9,681.88/x
  3. Step 3: Cross multiply
    16,756.82x = 23,121.78 × 9,681.88
  4. Step 4: Simplify right side
    16,756.82x = 223,862,299.35
  5. Step 5: Solve for x
    x = 223,862,299.35/16,756.82
  6. Step 6: Final answer
    x = 13,359.47

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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.