Home / 13,205.62-19,795.07-8,278.70

Finding the Fourth Proportional to 13,205.62, 19,795.07 and 8,278.70

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Solution

The fourth proportional to 13,205.62, 19,795.07 and 8,278.70 is: 12,409.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.62 : 19,795.07 = 8,278.70 : x
  2. Step 2: Convert to fraction form
    13,205.62/19,795.07 = 8,278.70/x
  3. Step 3: Cross multiply
    13,205.62x = 19,795.07 × 8,278.70
  4. Step 4: Simplify right side
    13,205.62x = 163,877,516.19
  5. Step 5: Solve for x
    x = 163,877,516.19/13,205.62
  6. Step 6: Final answer
    x = 12,409.68

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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.