Home / 15,806.72-21,809.58-9,433.64

Finding the Fourth Proportional to 15,806.72, 21,809.58 and 9,433.64

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Solution

The fourth proportional to 15,806.72, 21,809.58 and 9,433.64 is: 13,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.72 : 21,809.58 = 9,433.64 : x
  2. Step 2: Convert to fraction form
    15,806.72/21,809.58 = 9,433.64/x
  3. Step 3: Cross multiply
    15,806.72x = 21,809.58 × 9,433.64
  4. Step 4: Simplify right side
    15,806.72x = 205,743,726.27
  5. Step 5: Solve for x
    x = 205,743,726.27/15,806.72
  6. Step 6: Final answer
    x = 13,016.22

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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.