Home / 10,989.63-16,490.97-4,068.99

Finding the Fourth Proportional to 10,989.63, 16,490.97 and 4,068.99

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Solution

The fourth proportional to 10,989.63, 16,490.97 and 4,068.99 is: 6,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.63 : 16,490.97 = 4,068.99 : x
  2. Step 2: Convert to fraction form
    10,989.63/16,490.97 = 4,068.99/x
  3. Step 3: Cross multiply
    10,989.63x = 16,490.97 × 4,068.99
  4. Step 4: Simplify right side
    10,989.63x = 67,101,592.02
  5. Step 5: Solve for x
    x = 67,101,592.02/10,989.63
  6. Step 6: Final answer
    x = 6,105.90

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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.