Home / 8,210.49-12,321.15-4,515.30

Finding the Fourth Proportional to 8,210.49, 12,321.15 and 4,515.30

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Solution

The fourth proportional to 8,210.49, 12,321.15 and 4,515.30 is: 6,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.49 : 12,321.15 = 4,515.30 : x
  2. Step 2: Convert to fraction form
    8,210.49/12,321.15 = 4,515.30/x
  3. Step 3: Cross multiply
    8,210.49x = 12,321.15 × 4,515.30
  4. Step 4: Simplify right side
    8,210.49x = 55,633,688.60
  5. Step 5: Solve for x
    x = 55,633,688.60/8,210.49
  6. Step 6: Final answer
    x = 6,775.93

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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.