Home / 8,215.84-12,320.10-2,371.06

Finding the Fourth Proportional to 8,215.84, 12,320.10 and 2,371.06

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Solution

The fourth proportional to 8,215.84, 12,320.10 and 2,371.06 is: 3,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.84 : 12,320.10 = 2,371.06 : x
  2. Step 2: Convert to fraction form
    8,215.84/12,320.10 = 2,371.06/x
  3. Step 3: Cross multiply
    8,215.84x = 12,320.10 × 2,371.06
  4. Step 4: Simplify right side
    8,215.84x = 29,211,696.31
  5. Step 5: Solve for x
    x = 29,211,696.31/8,215.84
  6. Step 6: Final answer
    x = 3,555.53

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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.