Home / 8,580.39-12,872.81-5,025.51

Finding the Fourth Proportional to 8,580.39, 12,872.81 and 5,025.51

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Solution

The fourth proportional to 8,580.39, 12,872.81 and 5,025.51 is: 7,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.39 : 12,872.81 = 5,025.51 : x
  2. Step 2: Convert to fraction form
    8,580.39/12,872.81 = 5,025.51/x
  3. Step 3: Cross multiply
    8,580.39x = 12,872.81 × 5,025.51
  4. Step 4: Simplify right side
    8,580.39x = 64,692,435.38
  5. Step 5: Solve for x
    x = 64,692,435.38/8,580.39
  6. Step 6: Final answer
    x = 7,539.57

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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.