Home / 16,989.32-23,450.10-9,919.64

Finding the Fourth Proportional to 16,989.32, 23,450.10 and 9,919.64

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Solution

The fourth proportional to 16,989.32, 23,450.10 and 9,919.64 is: 13,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989.32 : 23,450.10 = 9,919.64 : x
  2. Step 2: Convert to fraction form
    16,989.32/23,450.10 = 9,919.64/x
  3. Step 3: Cross multiply
    16,989.32x = 23,450.10 × 9,919.64
  4. Step 4: Simplify right side
    16,989.32x = 232,616,549.96
  5. Step 5: Solve for x
    x = 232,616,549.96/16,989.32
  6. Step 6: Final answer
    x = 13,691.93

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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.