Home / 11,021.45-15,209.65-5,985.66

Finding the Fourth Proportional to 11,021.45, 15,209.65 and 5,985.66

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Solution

The fourth proportional to 11,021.45, 15,209.65 and 5,985.66 is: 8,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.45 : 15,209.65 = 5,985.66 : x
  2. Step 2: Convert to fraction form
    11,021.45/15,209.65 = 5,985.66/x
  3. Step 3: Cross multiply
    11,021.45x = 15,209.65 × 5,985.66
  4. Step 4: Simplify right side
    11,021.45x = 91,039,858.14
  5. Step 5: Solve for x
    x = 91,039,858.14/11,021.45
  6. Step 6: Final answer
    x = 8,260.25

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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.