Home / 18,283.36-25,231.04-9,899.84

Finding the Fourth Proportional to 18,283.36, 25,231.04 and 9,899.84

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Solution

The fourth proportional to 18,283.36, 25,231.04 and 9,899.84 is: 13,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.36 : 25,231.04 = 9,899.84 : x
  2. Step 2: Convert to fraction form
    18,283.36/25,231.04 = 9,899.84/x
  3. Step 3: Cross multiply
    18,283.36x = 25,231.04 × 9,899.84
  4. Step 4: Simplify right side
    18,283.36x = 249,783,259.03
  5. Step 5: Solve for x
    x = 249,783,259.03/18,283.36
  6. Step 6: Final answer
    x = 13,661.78

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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.