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Finding the Fourth Proportional to 13,060, 18,022.92 and 7,091.80

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Solution

The fourth proportional to 13,060, 18,022.92 and 7,091.80 is: 9,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060 : 18,022.92 = 7,091.80 : x
  2. Step 2: Convert to fraction form
    13,060/18,022.92 = 7,091.80/x
  3. Step 3: Cross multiply
    13,060x = 18,022.92 × 7,091.80
  4. Step 4: Simplify right side
    13,060x = 127,814,944.06
  5. Step 5: Solve for x
    x = 127,814,944.06/13,060
  6. Step 6: Final answer
    x = 9,786.75

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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.