Home / 11,157.74-15,397.67-6,121.99

Finding the Fourth Proportional to 11,157.74, 15,397.67 and 6,121.99

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Solution

The fourth proportional to 11,157.74, 15,397.67 and 6,121.99 is: 8,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.74 : 15,397.67 = 6,121.99 : x
  2. Step 2: Convert to fraction form
    11,157.74/15,397.67 = 6,121.99/x
  3. Step 3: Cross multiply
    11,157.74x = 15,397.67 × 6,121.99
  4. Step 4: Simplify right side
    11,157.74x = 94,264,416.32
  5. Step 5: Solve for x
    x = 94,264,416.32/11,157.74
  6. Step 6: Final answer
    x = 8,448.34

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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.