Home / 7,255.42-10,013.40-4,111.60

Finding the Fourth Proportional to 7,255.42, 10,013.40 and 4,111.60

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Solution

The fourth proportional to 7,255.42, 10,013.40 and 4,111.60 is: 5,674.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.42 : 10,013.40 = 4,111.60 : x
  2. Step 2: Convert to fraction form
    7,255.42/10,013.40 = 4,111.60/x
  3. Step 3: Cross multiply
    7,255.42x = 10,013.40 × 4,111.60
  4. Step 4: Simplify right side
    7,255.42x = 41,171,095.44
  5. Step 5: Solve for x
    x = 41,171,095.44/7,255.42
  6. Step 6: Final answer
    x = 5,674.53

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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.