Home / 7,538.87-10,403.12-4,181.55

Finding the Fourth Proportional to 7,538.87, 10,403.12 and 4,181.55

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Solution

The fourth proportional to 7,538.87, 10,403.12 and 4,181.55 is: 5,770.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.87 : 10,403.12 = 4,181.55 : x
  2. Step 2: Convert to fraction form
    7,538.87/10,403.12 = 4,181.55/x
  3. Step 3: Cross multiply
    7,538.87x = 10,403.12 × 4,181.55
  4. Step 4: Simplify right side
    7,538.87x = 43,501,176.89
  5. Step 5: Solve for x
    x = 43,501,176.89/7,538.87
  6. Step 6: Final answer
    x = 5,770.26

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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.