Home / 8,436.05-12,661.75-4,490.62

Finding the Fourth Proportional to 8,436.05, 12,661.75 and 4,490.62

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Solution

The fourth proportional to 8,436.05, 12,661.75 and 4,490.62 is: 6,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.05 : 12,661.75 = 4,490.62 : x
  2. Step 2: Convert to fraction form
    8,436.05/12,661.75 = 4,490.62/x
  3. Step 3: Cross multiply
    8,436.05x = 12,661.75 × 4,490.62
  4. Step 4: Simplify right side
    8,436.05x = 56,859,107.79
  5. Step 5: Solve for x
    x = 56,859,107.79/8,436.05
  6. Step 6: Final answer
    x = 6,740.02

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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.