Home / 19,091.72-28,606.46-9,718.86

Finding the Fourth Proportional to 19,091.72, 28,606.46 and 9,718.86

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Solution

The fourth proportional to 19,091.72, 28,606.46 and 9,718.86 is: 14,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.72 : 28,606.46 = 9,718.86 : x
  2. Step 2: Convert to fraction form
    19,091.72/28,606.46 = 9,718.86/x
  3. Step 3: Cross multiply
    19,091.72x = 28,606.46 × 9,718.86
  4. Step 4: Simplify right side
    19,091.72x = 278,022,179.84
  5. Step 5: Solve for x
    x = 278,022,179.84/19,091.72
  6. Step 6: Final answer
    x = 14,562.45

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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.