Home / 15,273.40-21,048.75-11,910.89

Finding the Fourth Proportional to 15,273.40, 21,048.75 and 11,910.89

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Solution

The fourth proportional to 15,273.40, 21,048.75 and 11,910.89 is: 16,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.40 : 21,048.75 = 11,910.89 : x
  2. Step 2: Convert to fraction form
    15,273.40/21,048.75 = 11,910.89/x
  3. Step 3: Cross multiply
    15,273.40x = 21,048.75 × 11,910.89
  4. Step 4: Simplify right side
    15,273.40x = 250,709,345.89
  5. Step 5: Solve for x
    x = 250,709,345.89/15,273.40
  6. Step 6: Final answer
    x = 16,414.77

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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.