Home / 14,975.55-20,662.43-10,989.72

Finding the Fourth Proportional to 14,975.55, 20,662.43 and 10,989.72

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Solution

The fourth proportional to 14,975.55, 20,662.43 and 10,989.72 is: 15,163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,975.55 : 20,662.43 = 10,989.72 : x
  2. Step 2: Convert to fraction form
    14,975.55/20,662.43 = 10,989.72/x
  3. Step 3: Cross multiply
    14,975.55x = 20,662.43 × 10,989.72
  4. Step 4: Simplify right side
    14,975.55x = 227,074,265.27
  5. Step 5: Solve for x
    x = 227,074,265.27/14,975.55
  6. Step 6: Final answer
    x = 15,163.00

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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.