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Finding the Fourth Proportional to 17,900.76, 24,715.40 and 11,189.40

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Solution

The fourth proportional to 17,900.76, 24,715.40 and 11,189.40 is: 15,449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,900.76 : 24,715.40 = 11,189.40 : x
  2. Step 2: Convert to fraction form
    17,900.76/24,715.40 = 11,189.40/x
  3. Step 3: Cross multiply
    17,900.76x = 24,715.40 × 11,189.40
  4. Step 4: Simplify right side
    17,900.76x = 276,550,496.76
  5. Step 5: Solve for x
    x = 276,550,496.76/17,900.76
  6. Step 6: Final answer
    x = 15,449.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.