Home / 13,318.69-19,986.94-5,527.50

Finding the Fourth Proportional to 13,318.69, 19,986.94 and 5,527.50

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Solution

The fourth proportional to 13,318.69, 19,986.94 and 5,527.50 is: 8,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.69 : 19,986.94 = 5,527.50 : x
  2. Step 2: Convert to fraction form
    13,318.69/19,986.94 = 5,527.50/x
  3. Step 3: Cross multiply
    13,318.69x = 19,986.94 × 5,527.50
  4. Step 4: Simplify right side
    13,318.69x = 110,477,810.85
  5. Step 5: Solve for x
    x = 110,477,810.85/13,318.69
  6. Step 6: Final answer
    x = 8,294.95

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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.