Home / 10,930.10-16,407.30-8,475.80

Finding the Fourth Proportional to 10,930.10, 16,407.30 and 8,475.80

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Solution

The fourth proportional to 10,930.10, 16,407.30 and 8,475.80 is: 12,723.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.10 : 16,407.30 = 8,475.80 : x
  2. Step 2: Convert to fraction form
    10,930.10/16,407.30 = 8,475.80/x
  3. Step 3: Cross multiply
    10,930.10x = 16,407.30 × 8,475.80
  4. Step 4: Simplify right side
    10,930.10x = 139,064,993.34
  5. Step 5: Solve for x
    x = 139,064,993.34/10,930.10
  6. Step 6: Final answer
    x = 12,723.12

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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.