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Finding the Fourth Proportional to 18,509.34, 25,542.91 and 10,125.84

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Solution

The fourth proportional to 18,509.34, 25,542.91 and 10,125.84 is: 13,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.34 : 25,542.91 = 10,125.84 : x
  2. Step 2: Convert to fraction form
    18,509.34/25,542.91 = 10,125.84/x
  3. Step 3: Cross multiply
    18,509.34x = 25,542.91 × 10,125.84
  4. Step 4: Simplify right side
    18,509.34x = 258,643,528.24
  5. Step 5: Solve for x
    x = 258,643,528.24/18,509.34
  6. Step 6: Final answer
    x = 13,973.67

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