Home / 17,789.68-26,670.12-7,409.20

Finding the Fourth Proportional to 17,789.68, 26,670.12 and 7,409.20

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Solution

The fourth proportional to 17,789.68, 26,670.12 and 7,409.20 is: 11,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,789.68 : 26,670.12 = 7,409.20 : x
  2. Step 2: Convert to fraction form
    17,789.68/26,670.12 = 7,409.20/x
  3. Step 3: Cross multiply
    17,789.68x = 26,670.12 × 7,409.20
  4. Step 4: Simplify right side
    17,789.68x = 197,604,253.10
  5. Step 5: Solve for x
    x = 197,604,253.10/17,789.68
  6. Step 6: Final answer
    x = 11,107.80

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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.