Home / 16,981.85-23,436.43-9,429.64

Finding the Fourth Proportional to 16,981.85, 23,436.43 and 9,429.64

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Solution

The fourth proportional to 16,981.85, 23,436.43 and 9,429.64 is: 13,013.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.85 : 23,436.43 = 9,429.64 : x
  2. Step 2: Convert to fraction form
    16,981.85/23,436.43 = 9,429.64/x
  3. Step 3: Cross multiply
    16,981.85x = 23,436.43 × 9,429.64
  4. Step 4: Simplify right side
    16,981.85x = 220,997,015.62
  5. Step 5: Solve for x
    x = 220,997,015.62/16,981.85
  6. Step 6: Final answer
    x = 13,013.72

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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.