Home / 16,905.45-23,329.08-9,351.57

Finding the Fourth Proportional to 16,905.45, 23,329.08 and 9,351.57

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Solution

The fourth proportional to 16,905.45, 23,329.08 and 9,351.57 is: 12,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.45 : 23,329.08 = 9,351.57 : x
  2. Step 2: Convert to fraction form
    16,905.45/23,329.08 = 9,351.57/x
  3. Step 3: Cross multiply
    16,905.45x = 23,329.08 × 9,351.57
  4. Step 4: Simplify right side
    16,905.45x = 218,163,524.66
  5. Step 5: Solve for x
    x = 218,163,524.66/16,905.45
  6. Step 6: Final answer
    x = 12,904.92

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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.