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Finding the Fourth Proportional to 11,150.10, 16,715.91 and 8,695.80

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Solution

The fourth proportional to 11,150.10, 16,715.91 and 8,695.80 is: 13,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.10 : 16,715.91 = 8,695.80 : x
  2. Step 2: Convert to fraction form
    11,150.10/16,715.91 = 8,695.80/x
  3. Step 3: Cross multiply
    11,150.10x = 16,715.91 × 8,695.80
  4. Step 4: Simplify right side
    11,150.10x = 145,358,210.18
  5. Step 5: Solve for x
    x = 145,358,210.18/11,150.10
  6. Step 6: Final answer
    x = 13,036.49

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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.