Home / 16,820.21-23,211.78-9,266.36

Finding the Fourth Proportional to 16,820.21, 23,211.78 and 9,266.36

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Solution

The fourth proportional to 16,820.21, 23,211.78 and 9,266.36 is: 12,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820.21 : 23,211.78 = 9,266.36 : x
  2. Step 2: Convert to fraction form
    16,820.21/23,211.78 = 9,266.36/x
  3. Step 3: Cross multiply
    16,820.21x = 23,211.78 × 9,266.36
  4. Step 4: Simplify right side
    16,820.21x = 215,088,735.15
  5. Step 5: Solve for x
    x = 215,088,735.15/16,820.21
  6. Step 6: Final answer
    x = 12,787.52

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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.