Home / 11,726.49-16,165.88-7,247.71

Finding the Fourth Proportional to 11,726.49, 16,165.88 and 7,247.71

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Solution

The fourth proportional to 11,726.49, 16,165.88 and 7,247.71 is: 9,991.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.49 : 16,165.88 = 7,247.71 : x
  2. Step 2: Convert to fraction form
    11,726.49/16,165.88 = 7,247.71/x
  3. Step 3: Cross multiply
    11,726.49x = 16,165.88 × 7,247.71
  4. Step 4: Simplify right side
    11,726.49x = 117,165,529.31
  5. Step 5: Solve for x
    x = 117,165,529.31/11,726.49
  6. Step 6: Final answer
    x = 9,991.53

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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.