Home / 8,611.80-11,886.26-5,622.36

Finding the Fourth Proportional to 8,611.80, 11,886.26 and 5,622.36

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Solution

The fourth proportional to 8,611.80, 11,886.26 and 5,622.36 is: 7,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.80 : 11,886.26 = 5,622.36 : x
  2. Step 2: Convert to fraction form
    8,611.80/11,886.26 = 5,622.36/x
  3. Step 3: Cross multiply
    8,611.80x = 11,886.26 × 5,622.36
  4. Step 4: Simplify right side
    8,611.80x = 66,828,832.77
  5. Step 5: Solve for x
    x = 66,828,832.77/8,611.80
  6. Step 6: Final answer
    x = 7,760.15

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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.