Home / 13,215.15-19,825.43-4,456.22

Finding the Fourth Proportional to 13,215.15, 19,825.43 and 4,456.22

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Solution

The fourth proportional to 13,215.15, 19,825.43 and 4,456.22 is: 6,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.15 : 19,825.43 = 4,456.22 : x
  2. Step 2: Convert to fraction form
    13,215.15/19,825.43 = 4,456.22/x
  3. Step 3: Cross multiply
    13,215.15x = 19,825.43 × 4,456.22
  4. Step 4: Simplify right side
    13,215.15x = 88,346,356.27
  5. Step 5: Solve for x
    x = 88,346,356.27/13,215.15
  6. Step 6: Final answer
    x = 6,685.23

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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.