Home / 16,784.21-23,156.66-9,705.62

Finding the Fourth Proportional to 16,784.21, 23,156.66 and 9,705.62

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Solution

The fourth proportional to 16,784.21, 23,156.66 and 9,705.62 is: 13,390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,784.21 : 23,156.66 = 9,705.62 : x
  2. Step 2: Convert to fraction form
    16,784.21/23,156.66 = 9,705.62/x
  3. Step 3: Cross multiply
    16,784.21x = 23,156.66 × 9,705.62
  4. Step 4: Simplify right side
    16,784.21x = 224,749,650.91
  5. Step 5: Solve for x
    x = 224,749,650.91/16,784.21
  6. Step 6: Final answer
    x = 13,390.54

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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.