Home / 11,155.01-16,699.64-9,771.05

Finding the Fourth Proportional to 11,155.01, 16,699.64 and 9,771.05

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Solution

The fourth proportional to 11,155.01, 16,699.64 and 9,771.05 is: 14,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.01 : 16,699.64 = 9,771.05 : x
  2. Step 2: Convert to fraction form
    11,155.01/16,699.64 = 9,771.05/x
  3. Step 3: Cross multiply
    11,155.01x = 16,699.64 × 9,771.05
  4. Step 4: Simplify right side
    11,155.01x = 163,173,083.60
  5. Step 5: Solve for x
    x = 163,173,083.60/11,155.01
  6. Step 6: Final answer
    x = 14,627.78

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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.