Home / 14,269.40-19,686.75-8,299.70

Finding the Fourth Proportional to 14,269.40, 19,686.75 and 8,299.70

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Solution

The fourth proportional to 14,269.40, 19,686.75 and 8,299.70 is: 11,450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269.40 : 19,686.75 = 8,299.70 : x
  2. Step 2: Convert to fraction form
    14,269.40/19,686.75 = 8,299.70/x
  3. Step 3: Cross multiply
    14,269.40x = 19,686.75 × 8,299.70
  4. Step 4: Simplify right side
    14,269.40x = 163,394,118.98
  5. Step 5: Solve for x
    x = 163,394,118.98/14,269.40
  6. Step 6: Final answer
    x = 11,450.66

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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.