Home / 10,836.10-16,266.30-8,381.80

Finding the Fourth Proportional to 10,836.10, 16,266.30 and 8,381.80

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Solution

The fourth proportional to 10,836.10, 16,266.30 and 8,381.80 is: 12,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,836.10 : 16,266.30 = 8,381.80 : x
  2. Step 2: Convert to fraction form
    10,836.10/16,266.30 = 8,381.80/x
  3. Step 3: Cross multiply
    10,836.10x = 16,266.30 × 8,381.80
  4. Step 4: Simplify right side
    10,836.10x = 136,340,873.34
  5. Step 5: Solve for x
    x = 136,340,873.34/10,836.10
  6. Step 6: Final answer
    x = 12,582.10

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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.