Home / 12,431.16-18,611.87-9,325.62

Finding the Fourth Proportional to 12,431.16, 18,611.87 and 9,325.62

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Solution

The fourth proportional to 12,431.16, 18,611.87 and 9,325.62 is: 13,962.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.16 : 18,611.87 = 9,325.62 : x
  2. Step 2: Convert to fraction form
    12,431.16/18,611.87 = 9,325.62/x
  3. Step 3: Cross multiply
    12,431.16x = 18,611.87 × 9,325.62
  4. Step 4: Simplify right side
    12,431.16x = 173,567,180.48
  5. Step 5: Solve for x
    x = 173,567,180.48/12,431.16
  6. Step 6: Final answer
    x = 13,962.27

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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.