Home / 8,400.87-12,584.02-4,929.75

Finding the Fourth Proportional to 8,400.87, 12,584.02 and 4,929.75

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Solution

The fourth proportional to 8,400.87, 12,584.02 and 4,929.75 is: 7,384.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.87 : 12,584.02 = 4,929.75 : x
  2. Step 2: Convert to fraction form
    8,400.87/12,584.02 = 4,929.75/x
  3. Step 3: Cross multiply
    8,400.87x = 12,584.02 × 4,929.75
  4. Step 4: Simplify right side
    8,400.87x = 62,036,072.60
  5. Step 5: Solve for x
    x = 62,036,072.60/8,400.87
  6. Step 6: Final answer
    x = 7,384.48

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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.