Home / 13,644.49-18,829.50-7,676.11

Finding the Fourth Proportional to 13,644.49, 18,829.50 and 7,676.11

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Solution

The fourth proportional to 13,644.49, 18,829.50 and 7,676.11 is: 10,593.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.49 : 18,829.50 = 7,676.11 : x
  2. Step 2: Convert to fraction form
    13,644.49/18,829.50 = 7,676.11/x
  3. Step 3: Cross multiply
    13,644.49x = 18,829.50 × 7,676.11
  4. Step 4: Simplify right side
    13,644.49x = 144,537,313.25
  5. Step 5: Solve for x
    x = 144,537,313.25/13,644.49
  6. Step 6: Final answer
    x = 10,593.09

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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.