Home / 14,921.82-20,589.80-9,623.81

Finding the Fourth Proportional to 14,921.82, 20,589.80 and 9,623.81

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Solution

The fourth proportional to 14,921.82, 20,589.80 and 9,623.81 is: 13,279.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.82 : 20,589.80 = 9,623.81 : x
  2. Step 2: Convert to fraction form
    14,921.82/20,589.80 = 9,623.81/x
  3. Step 3: Cross multiply
    14,921.82x = 20,589.80 × 9,623.81
  4. Step 4: Simplify right side
    14,921.82x = 198,152,326.49
  5. Step 5: Solve for x
    x = 198,152,326.49/14,921.82
  6. Step 6: Final answer
    x = 13,279.37

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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.