Home / 9,303.50-12,839.03-5,111.75

Finding the Fourth Proportional to 9,303.50, 12,839.03 and 5,111.75

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Solution

The fourth proportional to 9,303.50, 12,839.03 and 5,111.75 is: 7,054.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,303.50 : 12,839.03 = 5,111.75 : x
  2. Step 2: Convert to fraction form
    9,303.50/12,839.03 = 5,111.75/x
  3. Step 3: Cross multiply
    9,303.50x = 12,839.03 × 5,111.75
  4. Step 4: Simplify right side
    9,303.50x = 65,629,911.60
  5. Step 5: Solve for x
    x = 65,629,911.60/9,303.50
  6. Step 6: Final answer
    x = 7,054.32

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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.