Home / 13,622.84-18,799.10-7,654.36

Finding the Fourth Proportional to 13,622.84, 18,799.10 and 7,654.36

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Solution

The fourth proportional to 13,622.84, 18,799.10 and 7,654.36 is: 10,562.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.84 : 18,799.10 = 7,654.36 : x
  2. Step 2: Convert to fraction form
    13,622.84/18,799.10 = 7,654.36/x
  3. Step 3: Cross multiply
    13,622.84x = 18,799.10 × 7,654.36
  4. Step 4: Simplify right side
    13,622.84x = 143,895,079.08
  5. Step 5: Solve for x
    x = 143,895,079.08/13,622.84
  6. Step 6: Final answer
    x = 10,562.78

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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.