Home / 14,379.40-19,826.46-12,386.56

Finding the Fourth Proportional to 14,379.40, 19,826.46 and 12,386.56

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Solution

The fourth proportional to 14,379.40, 19,826.46 and 12,386.56 is: 17,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.40 : 19,826.46 = 12,386.56 : x
  2. Step 2: Convert to fraction form
    14,379.40/19,826.46 = 12,386.56/x
  3. Step 3: Cross multiply
    14,379.40x = 19,826.46 × 12,386.56
  4. Step 4: Simplify right side
    14,379.40x = 245,581,636.38
  5. Step 5: Solve for x
    x = 245,581,636.38/14,379.40
  6. Step 6: Final answer
    x = 17,078.71

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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.