Home / 14,761.82-20,378.32-9,726.46

Finding the Fourth Proportional to 14,761.82, 20,378.32 and 9,726.46

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Solution

The fourth proportional to 14,761.82, 20,378.32 and 9,726.46 is: 13,427.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,761.82 : 20,378.32 = 9,726.46 : x
  2. Step 2: Convert to fraction form
    14,761.82/20,378.32 = 9,726.46/x
  3. Step 3: Cross multiply
    14,761.82x = 20,378.32 × 9,726.46
  4. Step 4: Simplify right side
    14,761.82x = 198,208,914.35
  5. Step 5: Solve for x
    x = 198,208,914.35/14,761.82
  6. Step 6: Final answer
    x = 13,427.13

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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.