Home / 15,584.07-21,485.61-11,538.12

Finding the Fourth Proportional to 15,584.07, 21,485.61 and 11,538.12

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Solution

The fourth proportional to 15,584.07, 21,485.61 and 11,538.12 is: 15,907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,584.07 : 21,485.61 = 11,538.12 : x
  2. Step 2: Convert to fraction form
    15,584.07/21,485.61 = 11,538.12/x
  3. Step 3: Cross multiply
    15,584.07x = 21,485.61 × 11,538.12
  4. Step 4: Simplify right side
    15,584.07x = 247,903,546.45
  5. Step 5: Solve for x
    x = 247,903,546.45/15,584.07
  6. Step 6: Final answer
    x = 15,907.50

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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.