Home / 18,615.36-27,927.84-6,137.28

Finding the Fourth Proportional to 18,615.36, 27,927.84 and 6,137.28

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Solution

The fourth proportional to 18,615.36, 27,927.84 and 6,137.28 is: 9,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.36 : 27,927.84 = 6,137.28 : x
  2. Step 2: Convert to fraction form
    18,615.36/27,927.84 = 6,137.28/x
  3. Step 3: Cross multiply
    18,615.36x = 27,927.84 × 6,137.28
  4. Step 4: Simplify right side
    18,615.36x = 171,400,973.88
  5. Step 5: Solve for x
    x = 171,400,973.88/18,615.36
  6. Step 6: Final answer
    x = 9,207.50

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1.5x scale

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.