Home / 13,146.70-19,715.80-4,379.57

Finding the Fourth Proportional to 13,146.70, 19,715.80 and 4,379.57

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Solution

The fourth proportional to 13,146.70, 19,715.80 and 4,379.57 is: 6,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.70 : 19,715.80 = 4,379.57 : x
  2. Step 2: Convert to fraction form
    13,146.70/19,715.80 = 4,379.57/x
  3. Step 3: Cross multiply
    13,146.70x = 19,715.80 × 4,379.57
  4. Step 4: Simplify right side
    13,146.70x = 86,346,605.73
  5. Step 5: Solve for x
    x = 86,346,605.73/13,146.70
  6. Step 6: Final answer
    x = 6,567.93

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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.