Home / 7,422.09-11,111.50-3,903.75

Finding the Fourth Proportional to 7,422.09, 11,111.50 and 3,903.75

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Solution

The fourth proportional to 7,422.09, 11,111.50 and 3,903.75 is: 5,844.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.09 : 11,111.50 = 3,903.75 : x
  2. Step 2: Convert to fraction form
    7,422.09/11,111.50 = 3,903.75/x
  3. Step 3: Cross multiply
    7,422.09x = 11,111.50 × 3,903.75
  4. Step 4: Simplify right side
    7,422.09x = 43,376,518.13
  5. Step 5: Solve for x
    x = 43,376,518.13/7,422.09
  6. Step 6: Final answer
    x = 5,844.25

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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.