Home / 15,911.40-23,850.90-9,334.20

Finding the Fourth Proportional to 15,911.40, 23,850.90 and 9,334.20

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Solution

The fourth proportional to 15,911.40, 23,850.90 and 9,334.20 is: 13,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.40 : 23,850.90 = 9,334.20 : x
  2. Step 2: Convert to fraction form
    15,911.40/23,850.90 = 9,334.20/x
  3. Step 3: Cross multiply
    15,911.40x = 23,850.90 × 9,334.20
  4. Step 4: Simplify right side
    15,911.40x = 222,629,070.78
  5. Step 5: Solve for x
    x = 222,629,070.78/15,911.40
  6. Step 6: Final answer
    x = 13,991.80

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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.