Home / 11,019.97-15,199.34-7,192.45

Finding the Fourth Proportional to 11,019.97, 15,199.34 and 7,192.45

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Solution

The fourth proportional to 11,019.97, 15,199.34 and 7,192.45 is: 9,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.97 : 15,199.34 = 7,192.45 : x
  2. Step 2: Convert to fraction form
    11,019.97/15,199.34 = 7,192.45/x
  3. Step 3: Cross multiply
    11,019.97x = 15,199.34 × 7,192.45
  4. Step 4: Simplify right side
    11,019.97x = 109,320,492.98
  5. Step 5: Solve for x
    x = 109,320,492.98/11,019.97
  6. Step 6: Final answer
    x = 9,920.22

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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.