Home / 18,768.81-25,898.90-10,702.73

Finding the Fourth Proportional to 18,768.81, 25,898.90 and 10,702.73

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Solution

The fourth proportional to 18,768.81, 25,898.90 and 10,702.73 is: 14,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.81 : 25,898.90 = 10,702.73 : x
  2. Step 2: Convert to fraction form
    18,768.81/25,898.90 = 10,702.73/x
  3. Step 3: Cross multiply
    18,768.81x = 25,898.90 × 10,702.73
  4. Step 4: Simplify right side
    18,768.81x = 277,188,750.99
  5. Step 5: Solve for x
    x = 277,188,750.99/18,768.81
  6. Step 6: Final answer
    x = 14,768.58

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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.