Home / 16,989.07-25,478.42-8,099.72

Finding the Fourth Proportional to 16,989.07, 25,478.42 and 8,099.72

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Solution

The fourth proportional to 16,989.07, 25,478.42 and 8,099.72 is: 12,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.07 : 25,478.42 = 8,099.72 : x
  2. Step 2: Convert to fraction form
    16,989.07/25,478.42 = 8,099.72/x
  3. Step 3: Cross multiply
    16,989.07x = 25,478.42 × 8,099.72
  4. Step 4: Simplify right side
    16,989.07x = 206,368,068.04
  5. Step 5: Solve for x
    x = 206,368,068.04/16,989.07
  6. Step 6: Final answer
    x = 12,147.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.