Home / 13,318.84-18,379.83-7,653.52

Finding the Fourth Proportional to 13,318.84, 18,379.83 and 7,653.52

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Solution

The fourth proportional to 13,318.84, 18,379.83 and 7,653.52 is: 10,561.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.84 : 18,379.83 = 7,653.52 : x
  2. Step 2: Convert to fraction form
    13,318.84/18,379.83 = 7,653.52/x
  3. Step 3: Cross multiply
    13,318.84x = 18,379.83 × 7,653.52
  4. Step 4: Simplify right side
    13,318.84x = 140,670,396.50
  5. Step 5: Solve for x
    x = 140,670,396.50/13,318.84
  6. Step 6: Final answer
    x = 10,561.76

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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.