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Finding the Fourth Proportional to 9,002.10, 13,503.15 and 8,455.35

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Solution

The fourth proportional to 9,002.10, 13,503.15 and 8,455.35 is: 12,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,002.10 : 13,503.15 = 8,455.35 : x
  2. Step 2: Convert to fraction form
    9,002.10/13,503.15 = 8,455.35/x
  3. Step 3: Cross multiply
    9,002.10x = 13,503.15 × 8,455.35
  4. Step 4: Simplify right side
    9,002.10x = 114,173,859.35
  5. Step 5: Solve for x
    x = 114,173,859.35/9,002.10
  6. Step 6: Final answer
    x = 12,683.03

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Similar ratio
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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.