Home / 11,116.81-16,650.73-8,002.90

Finding the Fourth Proportional to 11,116.81, 16,650.73 and 8,002.90

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Solution

The fourth proportional to 11,116.81, 16,650.73 and 8,002.90 is: 11,986.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.81 : 16,650.73 = 8,002.90 : x
  2. Step 2: Convert to fraction form
    11,116.81/16,650.73 = 8,002.90/x
  3. Step 3: Cross multiply
    11,116.81x = 16,650.73 × 8,002.90
  4. Step 4: Simplify right side
    11,116.81x = 133,254,127.12
  5. Step 5: Solve for x
    x = 133,254,127.12/11,116.81
  6. Step 6: Final answer
    x = 11,986.72

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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.