Home / 11,223.51-15,485.81-6,747.45

Finding the Fourth Proportional to 11,223.51, 15,485.81 and 6,747.45

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Solution

The fourth proportional to 11,223.51, 15,485.81 and 6,747.45 is: 9,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.51 : 15,485.81 = 6,747.45 : x
  2. Step 2: Convert to fraction form
    11,223.51/15,485.81 = 6,747.45/x
  3. Step 3: Cross multiply
    11,223.51x = 15,485.81 × 6,747.45
  4. Step 4: Simplify right side
    11,223.51x = 104,489,728.68
  5. Step 5: Solve for x
    x = 104,489,728.68/11,223.51
  6. Step 6: Final answer
    x = 9,309.90

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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.