Home / 13,995.61-20,998.89-5,228.48

Finding the Fourth Proportional to 13,995.61, 20,998.89 and 5,228.48

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Solution

The fourth proportional to 13,995.61, 20,998.89 and 5,228.48 is: 7,844.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.61 : 20,998.89 = 5,228.48 : x
  2. Step 2: Convert to fraction form
    13,995.61/20,998.89 = 5,228.48/x
  3. Step 3: Cross multiply
    13,995.61x = 20,998.89 × 5,228.48
  4. Step 4: Simplify right side
    13,995.61x = 109,792,328.88
  5. Step 5: Solve for x
    x = 109,792,328.88/13,995.61
  6. Step 6: Final answer
    x = 7,844.77

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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.