Home / 8,351.24-12,527.72-3,420.08

Finding the Fourth Proportional to 8,351.24, 12,527.72 and 3,420.08

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Solution

The fourth proportional to 8,351.24, 12,527.72 and 3,420.08 is: 5,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.24 : 12,527.72 = 3,420.08 : x
  2. Step 2: Convert to fraction form
    8,351.24/12,527.72 = 3,420.08/x
  3. Step 3: Cross multiply
    8,351.24x = 12,527.72 × 3,420.08
  4. Step 4: Simplify right side
    8,351.24x = 42,845,804.62
  5. Step 5: Solve for x
    x = 42,845,804.62/8,351.24
  6. Step 6: Final answer
    x = 5,130.47

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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.