Home / 13,823.28-19,076.64-7,855.95

Finding the Fourth Proportional to 13,823.28, 19,076.64 and 7,855.95

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Solution

The fourth proportional to 13,823.28, 19,076.64 and 7,855.95 is: 10,841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.28 : 19,076.64 = 7,855.95 : x
  2. Step 2: Convert to fraction form
    13,823.28/19,076.64 = 7,855.95/x
  3. Step 3: Cross multiply
    13,823.28x = 19,076.64 × 7,855.95
  4. Step 4: Simplify right side
    13,823.28x = 149,865,130.01
  5. Step 5: Solve for x
    x = 149,865,130.01/13,823.28
  6. Step 6: Final answer
    x = 10,841.50

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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.