Home / 9,128.72-13,693.44-2,555.48

Finding the Fourth Proportional to 9,128.72, 13,693.44 and 2,555.48

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Solution

The fourth proportional to 9,128.72, 13,693.44 and 2,555.48 is: 3,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.72 : 13,693.44 = 2,555.48 : x
  2. Step 2: Convert to fraction form
    9,128.72/13,693.44 = 2,555.48/x
  3. Step 3: Cross multiply
    9,128.72x = 13,693.44 × 2,555.48
  4. Step 4: Simplify right side
    9,128.72x = 34,993,312.05
  5. Step 5: Solve for x
    x = 34,993,312.05/9,128.72
  6. Step 6: Final answer
    x = 3,833.32

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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.