Home / 15,383.54-21,237.45-12,325.39

Finding the Fourth Proportional to 15,383.54, 21,237.45 and 12,325.39

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Solution

The fourth proportional to 15,383.54, 21,237.45 and 12,325.39 is: 17,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.54 : 21,237.45 = 12,325.39 : x
  2. Step 2: Convert to fraction form
    15,383.54/21,237.45 = 12,325.39/x
  3. Step 3: Cross multiply
    15,383.54x = 21,237.45 × 12,325.39
  4. Step 4: Simplify right side
    15,383.54x = 261,759,853.86
  5. Step 5: Solve for x
    x = 261,759,853.86/15,383.54
  6. Step 6: Final answer
    x = 17,015.58

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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.