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Finding the Fourth Proportional to 12,673.60, 19,010.40 and 10,705.30

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Solution

The fourth proportional to 12,673.60, 19,010.40 and 10,705.30 is: 16,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.60 : 19,010.40 = 10,705.30 : x
  2. Step 2: Convert to fraction form
    12,673.60/19,010.40 = 10,705.30/x
  3. Step 3: Cross multiply
    12,673.60x = 19,010.40 × 10,705.30
  4. Step 4: Simplify right side
    12,673.60x = 203,512,035.12
  5. Step 5: Solve for x
    x = 203,512,035.12/12,673.60
  6. Step 6: Final answer
    x = 16,057.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.