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Finding the Fourth Proportional to 18,574.79, 27,866.33 and 8,708.81

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Solution

The fourth proportional to 18,574.79, 27,866.33 and 8,708.81 is: 13,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.79 : 27,866.33 = 8,708.81 : x
  2. Step 2: Convert to fraction form
    18,574.79/27,866.33 = 8,708.81/x
  3. Step 3: Cross multiply
    18,574.79x = 27,866.33 × 8,708.81
  4. Step 4: Simplify right side
    18,574.79x = 242,682,529.82
  5. Step 5: Solve for x
    x = 242,682,529.82/18,574.79
  6. Step 6: Final answer
    x = 13,065.16

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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.