Home / 8,213.09-12,310.81-4,260.39

Finding the Fourth Proportional to 8,213.09, 12,310.81 and 4,260.39

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Solution

The fourth proportional to 8,213.09, 12,310.81 and 4,260.39 is: 6,386.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.09 : 12,310.81 = 4,260.39 : x
  2. Step 2: Convert to fraction form
    8,213.09/12,310.81 = 4,260.39/x
  3. Step 3: Cross multiply
    8,213.09x = 12,310.81 × 4,260.39
  4. Step 4: Simplify right side
    8,213.09x = 52,448,830.51
  5. Step 5: Solve for x
    x = 52,448,830.51/8,213.09
  6. Step 6: Final answer
    x = 6,386.00

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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.