Home / 8,359.36-12,539.66-2,812.68

Finding the Fourth Proportional to 8,359.36, 12,539.66 and 2,812.68

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Solution

The fourth proportional to 8,359.36, 12,539.66 and 2,812.68 is: 4,219.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.36 : 12,539.66 = 2,812.68 : x
  2. Step 2: Convert to fraction form
    8,359.36/12,539.66 = 2,812.68/x
  3. Step 3: Cross multiply
    8,359.36x = 12,539.66 × 2,812.68
  4. Step 4: Simplify right side
    8,359.36x = 35,270,050.89
  5. Step 5: Solve for x
    x = 35,270,050.89/8,359.36
  6. Step 6: Final answer
    x = 4,219.23

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1.5x scale

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.