Home / 10,778.03-16,161.56-4,929.63

Finding the Fourth Proportional to 10,778.03, 16,161.56 and 4,929.63

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Solution

The fourth proportional to 10,778.03, 16,161.56 and 4,929.63 is: 7,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.03 : 16,161.56 = 4,929.63 : x
  2. Step 2: Convert to fraction form
    10,778.03/16,161.56 = 4,929.63/x
  3. Step 3: Cross multiply
    10,778.03x = 16,161.56 × 4,929.63
  4. Step 4: Simplify right side
    10,778.03x = 79,670,430.22
  5. Step 5: Solve for x
    x = 79,670,430.22/10,778.03
  6. Step 6: Final answer
    x = 7,391.93

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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.