Home / 13,932.48-19,226.56-7,644.80

Finding the Fourth Proportional to 13,932.48, 19,226.56 and 7,644.80

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Solution

The fourth proportional to 13,932.48, 19,226.56 and 7,644.80 is: 10,549.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.48 : 19,226.56 = 7,644.80 : x
  2. Step 2: Convert to fraction form
    13,932.48/19,226.56 = 7,644.80/x
  3. Step 3: Cross multiply
    13,932.48x = 19,226.56 × 7,644.80
  4. Step 4: Simplify right side
    13,932.48x = 146,983,205.89
  5. Step 5: Solve for x
    x = 146,983,205.89/13,932.48
  6. Step 6: Final answer
    x = 10,549.68

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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.