Home / 13,058.82-18,006.30-9,909.54

Finding the Fourth Proportional to 13,058.82, 18,006.30 and 9,909.54

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Solution

The fourth proportional to 13,058.82, 18,006.30 and 9,909.54 is: 13,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.82 : 18,006.30 = 9,909.54 : x
  2. Step 2: Convert to fraction form
    13,058.82/18,006.30 = 9,909.54/x
  3. Step 3: Cross multiply
    13,058.82x = 18,006.30 × 9,909.54
  4. Step 4: Simplify right side
    13,058.82x = 178,434,150.10
  5. Step 5: Solve for x
    x = 178,434,150.10/13,058.82
  6. Step 6: Final answer
    x = 13,663.88

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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.