Home / 16,686.12-23,025.80-9,969.60

Finding the Fourth Proportional to 16,686.12, 23,025.80 and 9,969.60

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Solution

The fourth proportional to 16,686.12, 23,025.80 and 9,969.60 is: 13,757.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.12 : 23,025.80 = 9,969.60 : x
  2. Step 2: Convert to fraction form
    16,686.12/23,025.80 = 9,969.60/x
  3. Step 3: Cross multiply
    16,686.12x = 23,025.80 × 9,969.60
  4. Step 4: Simplify right side
    16,686.12x = 229,558,015.68
  5. Step 5: Solve for x
    x = 229,558,015.68/16,686.12
  6. Step 6: Final answer
    x = 13,757.42

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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.