Home / 13,221.50-19,838.30-5,727.35

Finding the Fourth Proportional to 13,221.50, 19,838.30 and 5,727.35

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Solution

The fourth proportional to 13,221.50, 19,838.30 and 5,727.35 is: 8,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.50 : 19,838.30 = 5,727.35 : x
  2. Step 2: Convert to fraction form
    13,221.50/19,838.30 = 5,727.35/x
  3. Step 3: Cross multiply
    13,221.50x = 19,838.30 × 5,727.35
  4. Step 4: Simplify right side
    13,221.50x = 113,620,887.51
  5. Step 5: Solve for x
    x = 113,620,887.51/13,221.50
  6. Step 6: Final answer
    x = 8,593.65

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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.