Home / 15,928.37-21,979.23-8,757.10

Finding the Fourth Proportional to 15,928.37, 21,979.23 and 8,757.10

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Solution

The fourth proportional to 15,928.37, 21,979.23 and 8,757.10 is: 12,083.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,928.37 : 21,979.23 = 8,757.10 : x
  2. Step 2: Convert to fraction form
    15,928.37/21,979.23 = 8,757.10/x
  3. Step 3: Cross multiply
    15,928.37x = 21,979.23 × 8,757.10
  4. Step 4: Simplify right side
    15,928.37x = 192,474,315.03
  5. Step 5: Solve for x
    x = 192,474,315.03/15,928.37
  6. Step 6: Final answer
    x = 12,083.74

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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.