Home / 11,232.10-16,860.30-8,777.80

Finding the Fourth Proportional to 11,232.10, 16,860.30 and 8,777.80

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Solution

The fourth proportional to 11,232.10, 16,860.30 and 8,777.80 is: 13,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,232.10 : 16,860.30 = 8,777.80 : x
  2. Step 2: Convert to fraction form
    11,232.10/16,860.30 = 8,777.80/x
  3. Step 3: Cross multiply
    11,232.10x = 16,860.30 × 8,777.80
  4. Step 4: Simplify right side
    11,232.10x = 147,996,341.34
  5. Step 5: Solve for x
    x = 147,996,341.34/11,232.10
  6. Step 6: Final answer
    x = 13,176.20

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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.