Home / 11,104.08-16,686.90-7,663.20

Finding the Fourth Proportional to 11,104.08, 16,686.90 and 7,663.20

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Solution

The fourth proportional to 11,104.08, 16,686.90 and 7,663.20 is: 11,516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.08 : 16,686.90 = 7,663.20 : x
  2. Step 2: Convert to fraction form
    11,104.08/16,686.90 = 7,663.20/x
  3. Step 3: Cross multiply
    11,104.08x = 16,686.90 × 7,663.20
  4. Step 4: Simplify right side
    11,104.08x = 127,875,052.08
  5. Step 5: Solve for x
    x = 127,875,052.08/11,104.08
  6. Step 6: Final answer
    x = 11,516.04

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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.