Home / 18,485.14-25,511.25-10,102.90

Finding the Fourth Proportional to 18,485.14, 25,511.25 and 10,102.90

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Solution

The fourth proportional to 18,485.14, 25,511.25 and 10,102.90 is: 13,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.14 : 25,511.25 = 10,102.90 : x
  2. Step 2: Convert to fraction form
    18,485.14/25,511.25 = 10,102.90/x
  3. Step 3: Cross multiply
    18,485.14x = 25,511.25 × 10,102.90
  4. Step 4: Simplify right side
    18,485.14x = 257,737,607.63
  5. Step 5: Solve for x
    x = 257,737,607.63/18,485.14
  6. Step 6: Final answer
    x = 13,942.96

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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.