Home / 8,909.62-12,299.06-5,554.10

Finding the Fourth Proportional to 8,909.62, 12,299.06 and 5,554.10

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Solution

The fourth proportional to 8,909.62, 12,299.06 and 5,554.10 is: 7,667.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.62 : 12,299.06 = 5,554.10 : x
  2. Step 2: Convert to fraction form
    8,909.62/12,299.06 = 5,554.10/x
  3. Step 3: Cross multiply
    8,909.62x = 12,299.06 × 5,554.10
  4. Step 4: Simplify right side
    8,909.62x = 68,310,209.15
  5. Step 5: Solve for x
    x = 68,310,209.15/8,909.62
  6. Step 6: Final answer
    x = 7,667.02

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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.