Home / 7,280.12-10,867.21-6,739.16

Finding the Fourth Proportional to 7,280.12, 10,867.21 and 6,739.16

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Solution

The fourth proportional to 7,280.12, 10,867.21 and 6,739.16 is: 10,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.12 : 10,867.21 = 6,739.16 : x
  2. Step 2: Convert to fraction form
    7,280.12/10,867.21 = 6,739.16/x
  3. Step 3: Cross multiply
    7,280.12x = 10,867.21 × 6,739.16
  4. Step 4: Simplify right side
    7,280.12x = 73,235,866.94
  5. Step 5: Solve for x
    x = 73,235,866.94/7,280.12
  6. Step 6: Final answer
    x = 10,059.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.