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Finding the Fourth Proportional to 8,809.49, 13,194.07 and 4,428.20

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Solution

The fourth proportional to 8,809.49, 13,194.07 and 4,428.20 is: 6,632.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.49 : 13,194.07 = 4,428.20 : x
  2. Step 2: Convert to fraction form
    8,809.49/13,194.07 = 4,428.20/x
  3. Step 3: Cross multiply
    8,809.49x = 13,194.07 × 4,428.20
  4. Step 4: Simplify right side
    8,809.49x = 58,425,980.77
  5. Step 5: Solve for x
    x = 58,425,980.77/8,809.49
  6. Step 6: Final answer
    x = 6,632.16

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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.