Home / 18,977.89-26,189.34-10,480.54

Finding the Fourth Proportional to 18,977.89, 26,189.34 and 10,480.54

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Solution

The fourth proportional to 18,977.89, 26,189.34 and 10,480.54 is: 14,463.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.89 : 26,189.34 = 10,480.54 : x
  2. Step 2: Convert to fraction form
    18,977.89/26,189.34 = 10,480.54/x
  3. Step 3: Cross multiply
    18,977.89x = 26,189.34 × 10,480.54
  4. Step 4: Simplify right side
    18,977.89x = 274,478,425.44
  5. Step 5: Solve for x
    x = 274,478,425.44/18,977.89
  6. Step 6: Final answer
    x = 14,463.06

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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.