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Finding the Fourth Proportional to 13,685.48, 20,510.40 and 6,183.48

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Solution

The fourth proportional to 13,685.48, 20,510.40 and 6,183.48 is: 9,267.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.48 : 20,510.40 = 6,183.48 : x
  2. Step 2: Convert to fraction form
    13,685.48/20,510.40 = 6,183.48/x
  3. Step 3: Cross multiply
    13,685.48x = 20,510.40 × 6,183.48
  4. Step 4: Simplify right side
    13,685.48x = 126,825,648.19
  5. Step 5: Solve for x
    x = 126,825,648.19/13,685.48
  6. Step 6: Final answer
    x = 9,267.17

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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.