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Finding the Fourth Proportional to 18,570.50, 25,627.72 and 10,187

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Solution

The fourth proportional to 18,570.50, 25,627.72 and 10,187 is: 14,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.50 : 25,627.72 = 10,187 : x
  2. Step 2: Convert to fraction form
    18,570.50/25,627.72 = 10,187/x
  3. Step 3: Cross multiply
    18,570.50x = 25,627.72 × 10,187
  4. Step 4: Simplify right side
    18,570.50x = 261,069,583.64
  5. Step 5: Solve for x
    x = 261,069,583.64/18,570.50
  6. Step 6: Final answer
    x = 14,058.30

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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.