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Finding the Fourth Proportional to 8,890.81, 13,336.04 and 2,655.06

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Solution

The fourth proportional to 8,890.81, 13,336.04 and 2,655.06 is: 3,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.81 : 13,336.04 = 2,655.06 : x
  2. Step 2: Convert to fraction form
    8,890.81/13,336.04 = 2,655.06/x
  3. Step 3: Cross multiply
    8,890.81x = 13,336.04 × 2,655.06
  4. Step 4: Simplify right side
    8,890.81x = 35,408,018.01
  5. Step 5: Solve for x
    x = 35,408,018.01/8,890.81
  6. Step 6: Final answer
    x = 3,982.54

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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.