Home / 7,611.13-11,399.37-5,260.49

Finding the Fourth Proportional to 7,611.13, 11,399.37 and 5,260.49

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Solution

The fourth proportional to 7,611.13, 11,399.37 and 5,260.49 is: 7,878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.13 : 11,399.37 = 5,260.49 : x
  2. Step 2: Convert to fraction form
    7,611.13/11,399.37 = 5,260.49/x
  3. Step 3: Cross multiply
    7,611.13x = 11,399.37 × 5,260.49
  4. Step 4: Simplify right side
    7,611.13x = 59,966,271.89
  5. Step 5: Solve for x
    x = 59,966,271.89/7,611.13
  6. Step 6: Final answer
    x = 7,878.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.