Home / 6,975.44-9,631.68-5,400.80

Finding the Fourth Proportional to 6,975.44, 9,631.68 and 5,400.80

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Solution

The fourth proportional to 6,975.44, 9,631.68 and 5,400.80 is: 7,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,975.44 : 9,631.68 = 5,400.80 : x
  2. Step 2: Convert to fraction form
    6,975.44/9,631.68 = 5,400.80/x
  3. Step 3: Cross multiply
    6,975.44x = 9,631.68 × 5,400.80
  4. Step 4: Simplify right side
    6,975.44x = 52,018,777.34
  5. Step 5: Solve for x
    x = 52,018,777.34/6,975.44
  6. Step 6: Final answer
    x = 7,457.42

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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.