Home / 8,390.21-12,585.70-5,936

Finding the Fourth Proportional to 8,390.21, 12,585.70 and 5,936

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Solution

The fourth proportional to 8,390.21, 12,585.70 and 5,936 is: 8,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.21 : 12,585.70 = 5,936 : x
  2. Step 2: Convert to fraction form
    8,390.21/12,585.70 = 5,936/x
  3. Step 3: Cross multiply
    8,390.21x = 12,585.70 × 5,936
  4. Step 4: Simplify right side
    8,390.21x = 74,708,715.20
  5. Step 5: Solve for x
    x = 74,708,715.20/8,390.21
  6. Step 6: Final answer
    x = 8,904.27

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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.