Home / 15,971.88-23,959.06-4,878.64

Finding the Fourth Proportional to 15,971.88, 23,959.06 and 4,878.64

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Solution

The fourth proportional to 15,971.88, 23,959.06 and 4,878.64 is: 7,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,971.88 : 23,959.06 = 4,878.64 : x
  2. Step 2: Convert to fraction form
    15,971.88/23,959.06 = 4,878.64/x
  3. Step 3: Cross multiply
    15,971.88x = 23,959.06 × 4,878.64
  4. Step 4: Simplify right side
    15,971.88x = 116,887,628.48
  5. Step 5: Solve for x
    x = 116,887,628.48/15,971.88
  6. Step 6: Final answer
    x = 7,318.34

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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.