Home / 26,009.78-39,018.72-8,475.54

Finding the Fourth Proportional to 26,009.78, 39,018.72 and 8,475.54

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Solution

The fourth proportional to 26,009.78, 39,018.72 and 8,475.54 is: 12,714.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,009.78 : 39,018.72 = 8,475.54 : x
  2. Step 2: Convert to fraction form
    26,009.78/39,018.72 = 8,475.54/x
  3. Step 3: Cross multiply
    26,009.78x = 39,018.72 × 8,475.54
  4. Step 4: Simplify right side
    26,009.78x = 330,704,722.11
  5. Step 5: Solve for x
    x = 330,704,722.11/26,009.78
  6. Step 6: Final answer
    x = 12,714.63

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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.