Home / 16,989.90-25,494.88-6,468.78

Finding the Fourth Proportional to 16,989.90, 25,494.88 and 6,468.78

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Solution

The fourth proportional to 16,989.90, 25,494.88 and 6,468.78 is: 9,706.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.90 : 25,494.88 = 6,468.78 : x
  2. Step 2: Convert to fraction form
    16,989.90/25,494.88 = 6,468.78/x
  3. Step 3: Cross multiply
    16,989.90x = 25,494.88 × 6,468.78
  4. Step 4: Simplify right side
    16,989.90x = 164,920,769.85
  5. Step 5: Solve for x
    x = 164,920,769.85/16,989.90
  6. Step 6: Final answer
    x = 9,706.99

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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.