Home / 11,325.83-15,629.75-6,609.20

Finding the Fourth Proportional to 11,325.83, 15,629.75 and 6,609.20

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Solution

The fourth proportional to 11,325.83, 15,629.75 and 6,609.20 is: 9,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.83 : 15,629.75 = 6,609.20 : x
  2. Step 2: Convert to fraction form
    11,325.83/15,629.75 = 6,609.20/x
  3. Step 3: Cross multiply
    11,325.83x = 15,629.75 × 6,609.20
  4. Step 4: Simplify right side
    11,325.83x = 103,300,032.51
  5. Step 5: Solve for x
    x = 103,300,032.51/11,325.83
  6. Step 6: Final answer
    x = 9,120.75

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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.