Home / 10,738.80-16,108.20-7,239.60

Finding the Fourth Proportional to 10,738.80, 16,108.20 and 7,239.60

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Solution

The fourth proportional to 10,738.80, 16,108.20 and 7,239.60 is: 10,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,738.80 : 16,108.20 = 7,239.60 : x
  2. Step 2: Convert to fraction form
    10,738.80/16,108.20 = 7,239.60/x
  3. Step 3: Cross multiply
    10,738.80x = 16,108.20 × 7,239.60
  4. Step 4: Simplify right side
    10,738.80x = 116,616,924.72
  5. Step 5: Solve for x
    x = 116,616,924.72/10,738.80
  6. Step 6: Final answer
    x = 10,859.40

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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.