Home / 7,255.60-10,012.68-4,111.79

Finding the Fourth Proportional to 7,255.60, 10,012.68 and 4,111.79

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Solution

The fourth proportional to 7,255.60, 10,012.68 and 4,111.79 is: 5,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.60 : 10,012.68 = 4,111.79 : x
  2. Step 2: Convert to fraction form
    7,255.60/10,012.68 = 4,111.79/x
  3. Step 3: Cross multiply
    7,255.60x = 10,012.68 × 4,111.79
  4. Step 4: Simplify right side
    7,255.60x = 41,169,987.43
  5. Step 5: Solve for x
    x = 41,169,987.43/7,255.60
  6. Step 6: Final answer
    x = 5,674.24

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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.