Home / 18,087.63-27,139.19-9,328.69

Finding the Fourth Proportional to 18,087.63, 27,139.19 and 9,328.69

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Solution

The fourth proportional to 18,087.63, 27,139.19 and 9,328.69 is: 13,997.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.63 : 27,139.19 = 9,328.69 : x
  2. Step 2: Convert to fraction form
    18,087.63/27,139.19 = 9,328.69/x
  3. Step 3: Cross multiply
    18,087.63x = 27,139.19 × 9,328.69
  4. Step 4: Simplify right side
    18,087.63x = 253,173,090.36
  5. Step 5: Solve for x
    x = 253,173,090.36/18,087.63
  6. Step 6: Final answer
    x = 13,997.03

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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.