Home / 15,270.33-21,076.39-8,897.97

Finding the Fourth Proportional to 15,270.33, 21,076.39 and 8,897.97

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Solution

The fourth proportional to 15,270.33, 21,076.39 and 8,897.97 is: 12,281.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.33 : 21,076.39 = 8,897.97 : x
  2. Step 2: Convert to fraction form
    15,270.33/21,076.39 = 8,897.97/x
  3. Step 3: Cross multiply
    15,270.33x = 21,076.39 × 8,897.97
  4. Step 4: Simplify right side
    15,270.33x = 187,537,085.93
  5. Step 5: Solve for x
    x = 187,537,085.93/15,270.33
  6. Step 6: Final answer
    x = 12,281.14

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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.