Home / 15,987.76-23,984.36-4,893.28

Finding the Fourth Proportional to 15,987.76, 23,984.36 and 4,893.28

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Solution

The fourth proportional to 15,987.76, 23,984.36 and 4,893.28 is: 7,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.76 : 23,984.36 = 4,893.28 : x
  2. Step 2: Convert to fraction form
    15,987.76/23,984.36 = 4,893.28/x
  3. Step 3: Cross multiply
    15,987.76x = 23,984.36 × 4,893.28
  4. Step 4: Simplify right side
    15,987.76x = 117,362,189.10
  5. Step 5: Solve for x
    x = 117,362,189.10/15,987.76
  6. Step 6: Final answer
    x = 7,340.75

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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.