Home / 8,210.50-12,319.98-4,515.64

Finding the Fourth Proportional to 8,210.50, 12,319.98 and 4,515.64

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Solution

The fourth proportional to 8,210.50, 12,319.98 and 4,515.64 is: 6,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.50 : 12,319.98 = 4,515.64 : x
  2. Step 2: Convert to fraction form
    8,210.50/12,319.98 = 4,515.64/x
  3. Step 3: Cross multiply
    8,210.50x = 12,319.98 × 4,515.64
  4. Step 4: Simplify right side
    8,210.50x = 55,632,594.49
  5. Step 5: Solve for x
    x = 55,632,594.49/8,210.50
  6. Step 6: Final answer
    x = 6,775.79

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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.