Home / 18,283.84-25,231.70-9,900.34

Finding the Fourth Proportional to 18,283.84, 25,231.70 and 9,900.34

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Solution

The fourth proportional to 18,283.84, 25,231.70 and 9,900.34 is: 13,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.84 : 25,231.70 = 9,900.34 : x
  2. Step 2: Convert to fraction form
    18,283.84/25,231.70 = 9,900.34/x
  3. Step 3: Cross multiply
    18,283.84x = 25,231.70 × 9,900.34
  4. Step 4: Simplify right side
    18,283.84x = 249,802,408.78
  5. Step 5: Solve for x
    x = 249,802,408.78/18,283.84
  6. Step 6: Final answer
    x = 13,662.47

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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.