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Finding the Fourth Proportional to 10,804.74, 16,209.54 and 7,817.06

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Solution

The fourth proportional to 10,804.74, 16,209.54 and 7,817.06 is: 11,727.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,804.74 : 16,209.54 = 7,817.06 : x
  2. Step 2: Convert to fraction form
    10,804.74/16,209.54 = 7,817.06/x
  3. Step 3: Cross multiply
    10,804.74x = 16,209.54 × 7,817.06
  4. Step 4: Simplify right side
    10,804.74x = 126,710,865.70
  5. Step 5: Solve for x
    x = 126,710,865.70/10,804.74
  6. Step 6: Final answer
    x = 11,727.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.