Home / 15,105.07-22,659.91-7,705.49

Finding the Fourth Proportional to 15,105.07, 22,659.91 and 7,705.49

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Solution

The fourth proportional to 15,105.07, 22,659.91 and 7,705.49 is: 11,559.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.07 : 22,659.91 = 7,705.49 : x
  2. Step 2: Convert to fraction form
    15,105.07/22,659.91 = 7,705.49/x
  3. Step 3: Cross multiply
    15,105.07x = 22,659.91 × 7,705.49
  4. Step 4: Simplify right side
    15,105.07x = 174,605,738.23
  5. Step 5: Solve for x
    x = 174,605,738.23/15,105.07
  6. Step 6: Final answer
    x = 11,559.41

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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.