Home / 10,995.11-16,498.13-8,776.21

Finding the Fourth Proportional to 10,995.11, 16,498.13 and 8,776.21

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Solution

The fourth proportional to 10,995.11, 16,498.13 and 8,776.21 is: 13,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.11 : 16,498.13 = 8,776.21 : x
  2. Step 2: Convert to fraction form
    10,995.11/16,498.13 = 8,776.21/x
  3. Step 3: Cross multiply
    10,995.11x = 16,498.13 × 8,776.21
  4. Step 4: Simplify right side
    10,995.11x = 144,790,968.36
  5. Step 5: Solve for x
    x = 144,790,968.36/10,995.11
  6. Step 6: Final answer
    x = 13,168.68

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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.