Home / 9,090.74-12,544.97-5,111.75

Finding the Fourth Proportional to 9,090.74, 12,544.97 and 5,111.75

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Solution

The fourth proportional to 9,090.74, 12,544.97 and 5,111.75 is: 7,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.74 : 12,544.97 = 5,111.75 : x
  2. Step 2: Convert to fraction form
    9,090.74/12,544.97 = 5,111.75/x
  3. Step 3: Cross multiply
    9,090.74x = 12,544.97 × 5,111.75
  4. Step 4: Simplify right side
    9,090.74x = 64,126,662.11
  5. Step 5: Solve for x
    x = 64,126,662.11/9,090.74
  6. Step 6: Final answer
    x = 7,054.07

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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.