Home / 18,383.01-25,368.57-9,999.51

Finding the Fourth Proportional to 18,383.01, 25,368.57 and 9,999.51

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Solution

The fourth proportional to 18,383.01, 25,368.57 and 9,999.51 is: 13,799.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.01 : 25,368.57 = 9,999.51 : x
  2. Step 2: Convert to fraction form
    18,383.01/25,368.57 = 9,999.51/x
  3. Step 3: Cross multiply
    18,383.01x = 25,368.57 × 9,999.51
  4. Step 4: Simplify right side
    18,383.01x = 253,673,269.40
  5. Step 5: Solve for x
    x = 253,673,269.40/18,383.01
  6. Step 6: Final answer
    x = 13,799.33

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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.