Home / 18,702.06-25,808.91-10,318.50

Finding the Fourth Proportional to 18,702.06, 25,808.91 and 10,318.50

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Solution

The fourth proportional to 18,702.06, 25,808.91 and 10,318.50 is: 14,239.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.06 : 25,808.91 = 10,318.50 : x
  2. Step 2: Convert to fraction form
    18,702.06/25,808.91 = 10,318.50/x
  3. Step 3: Cross multiply
    18,702.06x = 25,808.91 × 10,318.50
  4. Step 4: Simplify right side
    18,702.06x = 266,309,237.84
  5. Step 5: Solve for x
    x = 266,309,237.84/18,702.06
  6. Step 6: Final answer
    x = 14,239.57

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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.