Home / 10,890.27-15,022.16-6,850.66

Finding the Fourth Proportional to 10,890.27, 15,022.16 and 6,850.66

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Solution

The fourth proportional to 10,890.27, 15,022.16 and 6,850.66 is: 9,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.27 : 15,022.16 = 6,850.66 : x
  2. Step 2: Convert to fraction form
    10,890.27/15,022.16 = 6,850.66/x
  3. Step 3: Cross multiply
    10,890.27x = 15,022.16 × 6,850.66
  4. Step 4: Simplify right side
    10,890.27x = 102,911,710.63
  5. Step 5: Solve for x
    x = 102,911,710.63/10,890.27
  6. Step 6: Final answer
    x = 9,449.88

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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.