Home / 13,310.80-19,956.60-8,696.40

Finding the Fourth Proportional to 13,310.80, 19,956.60 and 8,696.40

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Solution

The fourth proportional to 13,310.80, 19,956.60 and 8,696.40 is: 13,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.80 : 19,956.60 = 8,696.40 : x
  2. Step 2: Convert to fraction form
    13,310.80/19,956.60 = 8,696.40/x
  3. Step 3: Cross multiply
    13,310.80x = 19,956.60 × 8,696.40
  4. Step 4: Simplify right side
    13,310.80x = 173,550,576.24
  5. Step 5: Solve for x
    x = 173,550,576.24/13,310.80
  6. Step 6: Final answer
    x = 13,038.33

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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.