Home / 13,318.56-19,986.76-5,527.38

Finding the Fourth Proportional to 13,318.56, 19,986.76 and 5,527.38

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Solution

The fourth proportional to 13,318.56, 19,986.76 and 5,527.38 is: 8,294.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.56 : 19,986.76 = 5,527.38 : x
  2. Step 2: Convert to fraction form
    13,318.56/19,986.76 = 5,527.38/x
  3. Step 3: Cross multiply
    13,318.56x = 19,986.76 × 5,527.38
  4. Step 4: Simplify right side
    13,318.56x = 110,474,403.67
  5. Step 5: Solve for x
    x = 110,474,403.67/13,318.56
  6. Step 6: Final answer
    x = 8,294.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.