Home / 15,866.41-21,897.20-8,792.84

Finding the Fourth Proportional to 15,866.41, 21,897.20 and 8,792.84

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Solution

The fourth proportional to 15,866.41, 21,897.20 and 8,792.84 is: 12,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.41 : 21,897.20 = 8,792.84 : x
  2. Step 2: Convert to fraction form
    15,866.41/21,897.20 = 8,792.84/x
  3. Step 3: Cross multiply
    15,866.41x = 21,897.20 × 8,792.84
  4. Step 4: Simplify right side
    15,866.41x = 192,538,576.05
  5. Step 5: Solve for x
    x = 192,538,576.05/15,866.41
  6. Step 6: Final answer
    x = 12,134.98

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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.