Home / 13,559.72-18,706.84-7,893.52

Finding the Fourth Proportional to 13,559.72, 18,706.84 and 7,893.52

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Solution

The fourth proportional to 13,559.72, 18,706.84 and 7,893.52 is: 10,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.72 : 18,706.84 = 7,893.52 : x
  2. Step 2: Convert to fraction form
    13,559.72/18,706.84 = 7,893.52/x
  3. Step 3: Cross multiply
    13,559.72x = 18,706.84 × 7,893.52
  4. Step 4: Simplify right side
    13,559.72x = 147,662,815.68
  5. Step 5: Solve for x
    x = 147,662,815.68/13,559.72
  6. Step 6: Final answer
    x = 10,889.81

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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.