Home / 6,942.48-10,415.16-5,319.60

Finding the Fourth Proportional to 6,942.48, 10,415.16 and 5,319.60

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Solution

The fourth proportional to 6,942.48, 10,415.16 and 5,319.60 is: 7,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.48 : 10,415.16 = 5,319.60 : x
  2. Step 2: Convert to fraction form
    6,942.48/10,415.16 = 5,319.60/x
  3. Step 3: Cross multiply
    6,942.48x = 10,415.16 × 5,319.60
  4. Step 4: Simplify right side
    6,942.48x = 55,404,485.14
  5. Step 5: Solve for x
    x = 55,404,485.14/6,942.48
  6. Step 6: Final answer
    x = 7,980.50

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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.