Home / 13,020.55-19,530.85-4,706.43

Finding the Fourth Proportional to 13,020.55, 19,530.85 and 4,706.43

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Solution

The fourth proportional to 13,020.55, 19,530.85 and 4,706.43 is: 7,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.55 : 19,530.85 = 4,706.43 : x
  2. Step 2: Convert to fraction form
    13,020.55/19,530.85 = 4,706.43/x
  3. Step 3: Cross multiply
    13,020.55x = 19,530.85 × 4,706.43
  4. Step 4: Simplify right side
    13,020.55x = 91,920,578.37
  5. Step 5: Solve for x
    x = 91,920,578.37/13,020.55
  6. Step 6: Final answer
    x = 7,059.65

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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.