Home / 10,772.10-16,170.30-8,317.80

Finding the Fourth Proportional to 10,772.10, 16,170.30 and 8,317.80

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Solution

The fourth proportional to 10,772.10, 16,170.30 and 8,317.80 is: 12,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,772.10 : 16,170.30 = 8,317.80 : x
  2. Step 2: Convert to fraction form
    10,772.10/16,170.30 = 8,317.80/x
  3. Step 3: Cross multiply
    10,772.10x = 16,170.30 × 8,317.80
  4. Step 4: Simplify right side
    10,772.10x = 134,501,321.34
  5. Step 5: Solve for x
    x = 134,501,321.34/10,772.10
  6. Step 6: Final answer
    x = 12,486.08

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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.