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Finding the Fourth Proportional to 26,607.60, 39,911.40 and 10,812.60

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Solution

The fourth proportional to 26,607.60, 39,911.40 and 10,812.60 is: 16,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,607.60 : 39,911.40 = 10,812.60 : x
  2. Step 2: Convert to fraction form
    26,607.60/39,911.40 = 10,812.60/x
  3. Step 3: Cross multiply
    26,607.60x = 39,911.40 × 10,812.60
  4. Step 4: Simplify right side
    26,607.60x = 431,546,003.64
  5. Step 5: Solve for x
    x = 431,546,003.64/26,607.60
  6. Step 6: Final answer
    x = 16,218.90

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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.