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Finding the Fourth Proportional to 8,805.14, 13,206.06 and 4,421.42

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Solution

The fourth proportional to 8,805.14, 13,206.06 and 4,421.42 is: 6,631.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.14 : 13,206.06 = 4,421.42 : x
  2. Step 2: Convert to fraction form
    8,805.14/13,206.06 = 4,421.42/x
  3. Step 3: Cross multiply
    8,805.14x = 13,206.06 × 4,421.42
  4. Step 4: Simplify right side
    8,805.14x = 58,389,537.81
  5. Step 5: Solve for x
    x = 58,389,537.81/8,805.14
  6. Step 6: Final answer
    x = 6,631.30

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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.