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Finding the Fourth Proportional to 18,570.06, 27,850.23 and 8,689.68

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Solution

The fourth proportional to 18,570.06, 27,850.23 and 8,689.68 is: 13,032.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.06 : 27,850.23 = 8,689.68 : x
  2. Step 2: Convert to fraction form
    18,570.06/27,850.23 = 8,689.68/x
  3. Step 3: Cross multiply
    18,570.06x = 27,850.23 × 8,689.68
  4. Step 4: Simplify right side
    18,570.06x = 242,009,586.63
  5. Step 5: Solve for x
    x = 242,009,586.63/18,570.06
  6. Step 6: Final answer
    x = 13,032.25

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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.