Home / 13,466.49-20,168.42-12,999.30

Finding the Fourth Proportional to 13,466.49, 20,168.42 and 12,999.30

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Solution

The fourth proportional to 13,466.49, 20,168.42 and 12,999.30 is: 19,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.49 : 20,168.42 = 12,999.30 : x
  2. Step 2: Convert to fraction form
    13,466.49/20,168.42 = 12,999.30/x
  3. Step 3: Cross multiply
    13,466.49x = 20,168.42 × 12,999.30
  4. Step 4: Simplify right side
    13,466.49x = 262,175,277.11
  5. Step 5: Solve for x
    x = 262,175,277.11/13,466.49
  6. Step 6: Final answer
    x = 19,468.72

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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.