Home / 15,383.06-21,224.89-8,668.70

Finding the Fourth Proportional to 15,383.06, 21,224.89 and 8,668.70

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Solution

The fourth proportional to 15,383.06, 21,224.89 and 8,668.70 is: 11,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.06 : 21,224.89 = 8,668.70 : x
  2. Step 2: Convert to fraction form
    15,383.06/21,224.89 = 8,668.70/x
  3. Step 3: Cross multiply
    15,383.06x = 21,224.89 × 8,668.70
  4. Step 4: Simplify right side
    15,383.06x = 183,992,203.94
  5. Step 5: Solve for x
    x = 183,992,203.94/15,383.06
  6. Step 6: Final answer
    x = 11,960.70

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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.