Home / 15,675.36-21,631.34-8,601.33

Finding the Fourth Proportional to 15,675.36, 21,631.34 and 8,601.33

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Solution

The fourth proportional to 15,675.36, 21,631.34 and 8,601.33 is: 11,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.36 : 21,631.34 = 8,601.33 : x
  2. Step 2: Convert to fraction form
    15,675.36/21,631.34 = 8,601.33/x
  3. Step 3: Cross multiply
    15,675.36x = 21,631.34 × 8,601.33
  4. Step 4: Simplify right side
    15,675.36x = 186,058,293.68
  5. Step 5: Solve for x
    x = 186,058,293.68/15,675.36
  6. Step 6: Final answer
    x = 11,869.48

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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.