Home / 11,931.36-17,897.19-3,611.46

Finding the Fourth Proportional to 11,931.36, 17,897.19 and 3,611.46

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Solution

The fourth proportional to 11,931.36, 17,897.19 and 3,611.46 is: 5,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.36 : 17,897.19 = 3,611.46 : x
  2. Step 2: Convert to fraction form
    11,931.36/17,897.19 = 3,611.46/x
  3. Step 3: Cross multiply
    11,931.36x = 17,897.19 × 3,611.46
  4. Step 4: Simplify right side
    11,931.36x = 64,634,985.80
  5. Step 5: Solve for x
    x = 64,634,985.80/11,931.36
  6. Step 6: Final answer
    x = 5,417.24

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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.