Home / 9,039.36-12,471.84-5,260.80

Finding the Fourth Proportional to 9,039.36, 12,471.84 and 5,260.80

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Solution

The fourth proportional to 9,039.36, 12,471.84 and 5,260.80 is: 7,258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.36 : 12,471.84 = 5,260.80 : x
  2. Step 2: Convert to fraction form
    9,039.36/12,471.84 = 5,260.80/x
  3. Step 3: Cross multiply
    9,039.36x = 12,471.84 × 5,260.80
  4. Step 4: Simplify right side
    9,039.36x = 65,611,855.87
  5. Step 5: Solve for x
    x = 65,611,855.87/9,039.36
  6. Step 6: Final answer
    x = 7,258.46

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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.