Home / 16,905.90-23,324.19-9,830.70

Finding the Fourth Proportional to 16,905.90, 23,324.19 and 9,830.70

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Solution

The fourth proportional to 16,905.90, 23,324.19 and 9,830.70 is: 13,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.90 : 23,324.19 = 9,830.70 : x
  2. Step 2: Convert to fraction form
    16,905.90/23,324.19 = 9,830.70/x
  3. Step 3: Cross multiply
    16,905.90x = 23,324.19 × 9,830.70
  4. Step 4: Simplify right side
    16,905.90x = 229,293,114.63
  5. Step 5: Solve for x
    x = 229,293,114.63/16,905.90
  6. Step 6: Final answer
    x = 13,562.90

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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.