Home / 26,131.64-39,199.80-7,411.86

Finding the Fourth Proportional to 26,131.64, 39,199.80 and 7,411.86

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Solution

The fourth proportional to 26,131.64, 39,199.80 and 7,411.86 is: 11,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,131.64 : 39,199.80 = 7,411.86 : x
  2. Step 2: Convert to fraction form
    26,131.64/39,199.80 = 7,411.86/x
  3. Step 3: Cross multiply
    26,131.64x = 39,199.80 × 7,411.86
  4. Step 4: Simplify right side
    26,131.64x = 290,543,429.63
  5. Step 5: Solve for x
    x = 290,543,429.63/26,131.64
  6. Step 6: Final answer
    x = 11,118.45

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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.