Home / 15,300.08-21,112.69-8,584.47

Finding the Fourth Proportional to 15,300.08, 21,112.69 and 8,584.47

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Solution

The fourth proportional to 15,300.08, 21,112.69 and 8,584.47 is: 11,845.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.08 : 21,112.69 = 8,584.47 : x
  2. Step 2: Convert to fraction form
    15,300.08/21,112.69 = 8,584.47/x
  3. Step 3: Cross multiply
    15,300.08x = 21,112.69 × 8,584.47
  4. Step 4: Simplify right side
    15,300.08x = 181,241,261.12
  5. Step 5: Solve for x
    x = 181,241,261.12/15,300.08
  6. Step 6: Final answer
    x = 11,845.77

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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.