Home / 14,975.69-20,666.61-8,261.56

Finding the Fourth Proportional to 14,975.69, 20,666.61 and 8,261.56

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Solution

The fourth proportional to 14,975.69, 20,666.61 and 8,261.56 is: 11,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,975.69 : 20,666.61 = 8,261.56 : x
  2. Step 2: Convert to fraction form
    14,975.69/20,666.61 = 8,261.56/x
  3. Step 3: Cross multiply
    14,975.69x = 20,666.61 × 8,261.56
  4. Step 4: Simplify right side
    14,975.69x = 170,738,464.34
  5. Step 5: Solve for x
    x = 170,738,464.34/14,975.69
  6. Step 6: Final answer
    x = 11,401.05

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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.