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Finding the Fourth Proportional to 8,369.95, 12,554.54 and 3,688.71

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Solution

The fourth proportional to 8,369.95, 12,554.54 and 3,688.71 is: 5,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.95 : 12,554.54 = 3,688.71 : x
  2. Step 2: Convert to fraction form
    8,369.95/12,554.54 = 3,688.71/x
  3. Step 3: Cross multiply
    8,369.95x = 12,554.54 × 3,688.71
  4. Step 4: Simplify right side
    8,369.95x = 46,310,057.24
  5. Step 5: Solve for x
    x = 46,310,057.24/8,369.95
  6. Step 6: Final answer
    x = 5,532.90

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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.