Home / 18,939.93-26,137.28-10,442.36

Finding the Fourth Proportional to 18,939.93, 26,137.28 and 10,442.36

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Solution

The fourth proportional to 18,939.93, 26,137.28 and 10,442.36 is: 14,410.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.93 : 26,137.28 = 10,442.36 : x
  2. Step 2: Convert to fraction form
    18,939.93/26,137.28 = 10,442.36/x
  3. Step 3: Cross multiply
    18,939.93x = 26,137.28 × 10,442.36
  4. Step 4: Simplify right side
    18,939.93x = 272,934,704.28
  5. Step 5: Solve for x
    x = 272,934,704.28/18,939.93
  6. Step 6: Final answer
    x = 14,410.54

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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.