Home / 12,631.44-17,430.24-12,206.80

Finding the Fourth Proportional to 12,631.44, 17,430.24 and 12,206.80

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Solution

The fourth proportional to 12,631.44, 17,430.24 and 12,206.80 is: 16,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.44 : 17,430.24 = 12,206.80 : x
  2. Step 2: Convert to fraction form
    12,631.44/17,430.24 = 12,206.80/x
  3. Step 3: Cross multiply
    12,631.44x = 17,430.24 × 12,206.80
  4. Step 4: Simplify right side
    12,631.44x = 212,767,452.53
  5. Step 5: Solve for x
    x = 212,767,452.53/12,631.44
  6. Step 6: Final answer
    x = 16,844.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.