Home / 10,770.10-16,167.30-8,315.80

Finding the Fourth Proportional to 10,770.10, 16,167.30 and 8,315.80

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Solution

The fourth proportional to 10,770.10, 16,167.30 and 8,315.80 is: 12,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,770.10 : 16,167.30 = 8,315.80 : x
  2. Step 2: Convert to fraction form
    10,770.10/16,167.30 = 8,315.80/x
  3. Step 3: Cross multiply
    10,770.10x = 16,167.30 × 8,315.80
  4. Step 4: Simplify right side
    10,770.10x = 134,444,033.34
  5. Step 5: Solve for x
    x = 134,444,033.34/10,770.10
  6. Step 6: Final answer
    x = 12,483.08

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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.