Home / 8,389.79-12,582.74-3,707.25

Finding the Fourth Proportional to 8,389.79, 12,582.74 and 3,707.25

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Solution

The fourth proportional to 8,389.79, 12,582.74 and 3,707.25 is: 5,560.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.79 : 12,582.74 = 3,707.25 : x
  2. Step 2: Convert to fraction form
    8,389.79/12,582.74 = 3,707.25/x
  3. Step 3: Cross multiply
    8,389.79x = 12,582.74 × 3,707.25
  4. Step 4: Simplify right side
    8,389.79x = 46,647,372.13
  5. Step 5: Solve for x
    x = 46,647,372.13/8,389.79
  6. Step 6: Final answer
    x = 5,560.01

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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.