Home / 11,228.20-16,842.30-10,985.20

Finding the Fourth Proportional to 11,228.20, 16,842.30 and 10,985.20

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Solution

The fourth proportional to 11,228.20, 16,842.30 and 10,985.20 is: 16,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.20 : 16,842.30 = 10,985.20 : x
  2. Step 2: Convert to fraction form
    11,228.20/16,842.30 = 10,985.20/x
  3. Step 3: Cross multiply
    11,228.20x = 16,842.30 × 10,985.20
  4. Step 4: Simplify right side
    11,228.20x = 185,016,033.96
  5. Step 5: Solve for x
    x = 185,016,033.96/11,228.20
  6. Step 6: Final answer
    x = 16,477.80

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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.