Home / 11,100.50-15,316.16-6,623.37

Finding the Fourth Proportional to 11,100.50, 15,316.16 and 6,623.37

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Solution

The fourth proportional to 11,100.50, 15,316.16 and 6,623.37 is: 9,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.50 : 15,316.16 = 6,623.37 : x
  2. Step 2: Convert to fraction form
    11,100.50/15,316.16 = 6,623.37/x
  3. Step 3: Cross multiply
    11,100.50x = 15,316.16 × 6,623.37
  4. Step 4: Simplify right side
    11,100.50x = 101,444,561.54
  5. Step 5: Solve for x
    x = 101,444,561.54/11,100.50
  6. Step 6: Final answer
    x = 9,138.74

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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.