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Finding the Fourth Proportional to 18,702.48, 25,810.18 and 10,747.20

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Solution

The fourth proportional to 18,702.48, 25,810.18 and 10,747.20 is: 14,831.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.48 : 25,810.18 = 10,747.20 : x
  2. Step 2: Convert to fraction form
    18,702.48/25,810.18 = 10,747.20/x
  3. Step 3: Cross multiply
    18,702.48x = 25,810.18 × 10,747.20
  4. Step 4: Simplify right side
    18,702.48x = 277,387,166.50
  5. Step 5: Solve for x
    x = 277,387,166.50/18,702.48
  6. Step 6: Final answer
    x = 14,831.57

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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.