Home / 19,213.05-28,820.45-7,208.07

Finding the Fourth Proportional to 19,213.05, 28,820.45 and 7,208.07

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Solution

The fourth proportional to 19,213.05, 28,820.45 and 7,208.07 is: 10,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.05 : 28,820.45 = 7,208.07 : x
  2. Step 2: Convert to fraction form
    19,213.05/28,820.45 = 7,208.07/x
  3. Step 3: Cross multiply
    19,213.05x = 28,820.45 × 7,208.07
  4. Step 4: Simplify right side
    19,213.05x = 207,739,821.03
  5. Step 5: Solve for x
    x = 207,739,821.03/19,213.05
  6. Step 6: Final answer
    x = 10,812.43

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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.