Home / 15,185.43-20,965.64-9,527.94

Finding the Fourth Proportional to 15,185.43, 20,965.64 and 9,527.94

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Solution

The fourth proportional to 15,185.43, 20,965.64 and 9,527.94 is: 13,154.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185.43 : 20,965.64 = 9,527.94 : x
  2. Step 2: Convert to fraction form
    15,185.43/20,965.64 = 9,527.94/x
  3. Step 3: Cross multiply
    15,185.43x = 20,965.64 × 9,527.94
  4. Step 4: Simplify right side
    15,185.43x = 199,759,359.98
  5. Step 5: Solve for x
    x = 199,759,359.98/15,185.43
  6. Step 6: Final answer
    x = 13,154.67

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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.