Home / 15,781.32-23,664.69-5,913.54

Finding the Fourth Proportional to 15,781.32, 23,664.69 and 5,913.54

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Solution

The fourth proportional to 15,781.32, 23,664.69 and 5,913.54 is: 8,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.32 : 23,664.69 = 5,913.54 : x
  2. Step 2: Convert to fraction form
    15,781.32/23,664.69 = 5,913.54/x
  3. Step 3: Cross multiply
    15,781.32x = 23,664.69 × 5,913.54
  4. Step 4: Simplify right side
    15,781.32x = 139,942,090.90
  5. Step 5: Solve for x
    x = 139,942,090.90/15,781.32
  6. Step 6: Final answer
    x = 8,867.58

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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.