Home / 14,942.37-20,621.28-8,979.15

Finding the Fourth Proportional to 14,942.37, 20,621.28 and 8,979.15

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Solution

The fourth proportional to 14,942.37, 20,621.28 and 8,979.15 is: 12,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.37 : 20,621.28 = 8,979.15 : x
  2. Step 2: Convert to fraction form
    14,942.37/20,621.28 = 8,979.15/x
  3. Step 3: Cross multiply
    14,942.37x = 20,621.28 × 8,979.15
  4. Step 4: Simplify right side
    14,942.37x = 185,161,677.31
  5. Step 5: Solve for x
    x = 185,161,677.31/14,942.37
  6. Step 6: Final answer
    x = 12,391.72

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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.