Home / 8,628.21-12,943.71-3,697.92

Finding the Fourth Proportional to 8,628.21, 12,943.71 and 3,697.92

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Solution

The fourth proportional to 8,628.21, 12,943.71 and 3,697.92 is: 5,547.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.21 : 12,943.71 = 3,697.92 : x
  2. Step 2: Convert to fraction form
    8,628.21/12,943.71 = 3,697.92/x
  3. Step 3: Cross multiply
    8,628.21x = 12,943.71 × 3,697.92
  4. Step 4: Simplify right side
    8,628.21x = 47,864,804.08
  5. Step 5: Solve for x
    x = 47,864,804.08/8,628.21
  6. Step 6: Final answer
    x = 5,547.48

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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.