Home / 9,323.28-12,866.16-5,131.60

Finding the Fourth Proportional to 9,323.28, 12,866.16 and 5,131.60

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Solution

The fourth proportional to 9,323.28, 12,866.16 and 5,131.60 is: 7,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.28 : 12,866.16 = 5,131.60 : x
  2. Step 2: Convert to fraction form
    9,323.28/12,866.16 = 5,131.60/x
  3. Step 3: Cross multiply
    9,323.28x = 12,866.16 × 5,131.60
  4. Step 4: Simplify right side
    9,323.28x = 66,023,986.66
  5. Step 5: Solve for x
    x = 66,023,986.66/9,323.28
  6. Step 6: Final answer
    x = 7,081.63

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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.