Home / 18,240.89-25,172.44-9,857.39

Finding the Fourth Proportional to 18,240.89, 25,172.44 and 9,857.39

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Solution

The fourth proportional to 18,240.89, 25,172.44 and 9,857.39 is: 13,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.89 : 25,172.44 = 9,857.39 : x
  2. Step 2: Convert to fraction form
    18,240.89/25,172.44 = 9,857.39/x
  3. Step 3: Cross multiply
    18,240.89x = 25,172.44 × 9,857.39
  4. Step 4: Simplify right side
    18,240.89x = 248,134,407.83
  5. Step 5: Solve for x
    x = 248,134,407.83/18,240.89
  6. Step 6: Final answer
    x = 13,603.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.