Home / 11,021.20-16,483.80-9,859.60

Finding the Fourth Proportional to 11,021.20, 16,483.80 and 9,859.60

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Solution

The fourth proportional to 11,021.20, 16,483.80 and 9,859.60 is: 14,746.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.20 : 16,483.80 = 9,859.60 : x
  2. Step 2: Convert to fraction form
    11,021.20/16,483.80 = 9,859.60/x
  3. Step 3: Cross multiply
    11,021.20x = 16,483.80 × 9,859.60
  4. Step 4: Simplify right side
    11,021.20x = 162,523,674.48
  5. Step 5: Solve for x
    x = 162,523,674.48/11,021.20
  6. Step 6: Final answer
    x = 14,746.46

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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.