Home / 8,439.30-12,661.74-3,762.54

Finding the Fourth Proportional to 8,439.30, 12,661.74 and 3,762.54

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Solution

The fourth proportional to 8,439.30, 12,661.74 and 3,762.54 is: 5,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.30 : 12,661.74 = 3,762.54 : x
  2. Step 2: Convert to fraction form
    8,439.30/12,661.74 = 3,762.54/x
  3. Step 3: Cross multiply
    8,439.30x = 12,661.74 × 3,762.54
  4. Step 4: Simplify right side
    8,439.30x = 47,640,303.22
  5. Step 5: Solve for x
    x = 47,640,303.22/8,439.30
  6. Step 6: Final answer
    x = 5,645.05

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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.