Home / 9,215.31-13,821.78-4,216.23

Finding the Fourth Proportional to 9,215.31, 13,821.78 and 4,216.23

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Solution

The fourth proportional to 9,215.31, 13,821.78 and 4,216.23 is: 6,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.31 : 13,821.78 = 4,216.23 : x
  2. Step 2: Convert to fraction form
    9,215.31/13,821.78 = 4,216.23/x
  3. Step 3: Cross multiply
    9,215.31x = 13,821.78 × 4,216.23
  4. Step 4: Simplify right side
    9,215.31x = 58,275,803.49
  5. Step 5: Solve for x
    x = 58,275,803.49/9,215.31
  6. Step 6: Final answer
    x = 6,323.80

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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.