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Finding the Fourth Proportional to 8,806.70, 13,210.05 and 8,000.30

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Solution

The fourth proportional to 8,806.70, 13,210.05 and 8,000.30 is: 12,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.70 : 13,210.05 = 8,000.30 : x
  2. Step 2: Convert to fraction form
    8,806.70/13,210.05 = 8,000.30/x
  3. Step 3: Cross multiply
    8,806.70x = 13,210.05 × 8,000.30
  4. Step 4: Simplify right side
    8,806.70x = 105,684,363.02
  5. Step 5: Solve for x
    x = 105,684,363.02/8,806.70
  6. Step 6: Final answer
    x = 12,000.45

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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.