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Finding the Fourth Proportional to 13,466.70, 20,200.05 and 12,300.30

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Solution

The fourth proportional to 13,466.70, 20,200.05 and 12,300.30 is: 18,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.70 : 20,200.05 = 12,300.30 : x
  2. Step 2: Convert to fraction form
    13,466.70/20,200.05 = 12,300.30/x
  3. Step 3: Cross multiply
    13,466.70x = 20,200.05 × 12,300.30
  4. Step 4: Simplify right side
    13,466.70x = 248,466,675.02
  5. Step 5: Solve for x
    x = 248,466,675.02/13,466.70
  6. Step 6: Final answer
    x = 18,450.45

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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.