Home / 11,021.55-15,209.85-5,985.81

Finding the Fourth Proportional to 11,021.55, 15,209.85 and 5,985.81

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Solution

The fourth proportional to 11,021.55, 15,209.85 and 5,985.81 is: 8,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.55 : 15,209.85 = 5,985.81 : x
  2. Step 2: Convert to fraction form
    11,021.55/15,209.85 = 5,985.81/x
  3. Step 3: Cross multiply
    11,021.55x = 15,209.85 × 5,985.81
  4. Step 4: Simplify right side
    11,021.55x = 91,043,272.23
  5. Step 5: Solve for x
    x = 91,043,272.23/11,021.55
  6. Step 6: Final answer
    x = 8,260.48

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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.