Home / 13,913.27-19,220.09-11,220.53

Finding the Fourth Proportional to 13,913.27, 19,220.09 and 11,220.53

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Solution

The fourth proportional to 13,913.27, 19,220.09 and 11,220.53 is: 15,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.27 : 19,220.09 = 11,220.53 : x
  2. Step 2: Convert to fraction form
    13,913.27/19,220.09 = 11,220.53/x
  3. Step 3: Cross multiply
    13,913.27x = 19,220.09 × 11,220.53
  4. Step 4: Simplify right side
    13,913.27x = 215,659,444.24
  5. Step 5: Solve for x
    x = 215,659,444.24/13,913.27
  6. Step 6: Final answer
    x = 15,500.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.