Home / 15,647.06-21,589.43-8,930.54

Finding the Fourth Proportional to 15,647.06, 21,589.43 and 8,930.54

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Solution

The fourth proportional to 15,647.06, 21,589.43 and 8,930.54 is: 12,322.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.06 : 21,589.43 = 8,930.54 : x
  2. Step 2: Convert to fraction form
    15,647.06/21,589.43 = 8,930.54/x
  3. Step 3: Cross multiply
    15,647.06x = 21,589.43 × 8,930.54
  4. Step 4: Simplify right side
    15,647.06x = 192,805,344.49
  5. Step 5: Solve for x
    x = 192,805,344.49/15,647.06
  6. Step 6: Final answer
    x = 12,322.14

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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.