Home / 15,636.44-21,582.08-9,664.50

Finding the Fourth Proportional to 15,636.44, 21,582.08 and 9,664.50

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Solution

The fourth proportional to 15,636.44, 21,582.08 and 9,664.50 is: 13,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.44 : 21,582.08 = 9,664.50 : x
  2. Step 2: Convert to fraction form
    15,636.44/21,582.08 = 9,664.50/x
  3. Step 3: Cross multiply
    15,636.44x = 21,582.08 × 9,664.50
  4. Step 4: Simplify right side
    15,636.44x = 208,579,963.84
  5. Step 5: Solve for x
    x = 208,579,963.84/15,636.44
  6. Step 6: Final answer
    x = 13,339.36

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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.