Home / 10,975.37-15,144.38-6,666.22

Finding the Fourth Proportional to 10,975.37, 15,144.38 and 6,666.22

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Solution

The fourth proportional to 10,975.37, 15,144.38 and 6,666.22 is: 9,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.37 : 15,144.38 = 6,666.22 : x
  2. Step 2: Convert to fraction form
    10,975.37/15,144.38 = 6,666.22/x
  3. Step 3: Cross multiply
    10,975.37x = 15,144.38 × 6,666.22
  4. Step 4: Simplify right side
    10,975.37x = 100,955,812.77
  5. Step 5: Solve for x
    x = 100,955,812.77/10,975.37
  6. Step 6: Final answer
    x = 9,198.40

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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.