Home / 18,905.40-26,090.06-10,408.41

Finding the Fourth Proportional to 18,905.40, 26,090.06 and 10,408.41

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Solution

The fourth proportional to 18,905.40, 26,090.06 and 10,408.41 is: 14,363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.40 : 26,090.06 = 10,408.41 : x
  2. Step 2: Convert to fraction form
    18,905.40/26,090.06 = 10,408.41/x
  3. Step 3: Cross multiply
    18,905.40x = 26,090.06 × 10,408.41
  4. Step 4: Simplify right side
    18,905.40x = 271,555,989.36
  5. Step 5: Solve for x
    x = 271,555,989.36/18,905.40
  6. Step 6: Final answer
    x = 14,363.94

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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.