Home / 9,431.15-13,015.21-5,182.48

Finding the Fourth Proportional to 9,431.15, 13,015.21 and 5,182.48

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Solution

The fourth proportional to 9,431.15, 13,015.21 and 5,182.48 is: 7,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.15 : 13,015.21 = 5,182.48 : x
  2. Step 2: Convert to fraction form
    9,431.15/13,015.21 = 5,182.48/x
  3. Step 3: Cross multiply
    9,431.15x = 13,015.21 × 5,182.48
  4. Step 4: Simplify right side
    9,431.15x = 67,451,065.52
  5. Step 5: Solve for x
    x = 67,451,065.52/9,431.15
  6. Step 6: Final answer
    x = 7,151.94

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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.