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Finding the Fourth Proportional to 13,583.79, 18,752.18 and 8,550.45

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Solution

The fourth proportional to 13,583.79, 18,752.18 and 8,550.45 is: 11,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.79 : 18,752.18 = 8,550.45 : x
  2. Step 2: Convert to fraction form
    13,583.79/18,752.18 = 8,550.45/x
  3. Step 3: Cross multiply
    13,583.79x = 18,752.18 × 8,550.45
  4. Step 4: Simplify right side
    13,583.79x = 160,339,534.73
  5. Step 5: Solve for x
    x = 160,339,534.73/13,583.79
  6. Step 6: Final answer
    x = 11,803.74

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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.