Home / 10,664.81-15,962.37-9,641.71

Finding the Fourth Proportional to 10,664.81, 15,962.37 and 9,641.71

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Solution

The fourth proportional to 10,664.81, 15,962.37 and 9,641.71 is: 14,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.81 : 15,962.37 = 9,641.71 : x
  2. Step 2: Convert to fraction form
    10,664.81/15,962.37 = 9,641.71/x
  3. Step 3: Cross multiply
    10,664.81x = 15,962.37 × 9,641.71
  4. Step 4: Simplify right side
    10,664.81x = 153,904,481.36
  5. Step 5: Solve for x
    x = 153,904,481.36/10,664.81
  6. Step 6: Final answer
    x = 14,431.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.