Home / 7,255.12-10,012.30-4,111.24

Finding the Fourth Proportional to 7,255.12, 10,012.30 and 4,111.24

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Solution

The fourth proportional to 7,255.12, 10,012.30 and 4,111.24 is: 5,673.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.12 : 10,012.30 = 4,111.24 : x
  2. Step 2: Convert to fraction form
    7,255.12/10,012.30 = 4,111.24/x
  3. Step 3: Cross multiply
    7,255.12x = 10,012.30 × 4,111.24
  4. Step 4: Simplify right side
    7,255.12x = 41,162,968.25
  5. Step 5: Solve for x
    x = 41,162,968.25/7,255.12
  6. Step 6: Final answer
    x = 5,673.64

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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.