Home / 13,154.21-19,731.28-10,836.39

Finding the Fourth Proportional to 13,154.21, 19,731.28 and 10,836.39

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Solution

The fourth proportional to 13,154.21, 19,731.28 and 10,836.39 is: 16,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.21 : 19,731.28 = 10,836.39 : x
  2. Step 2: Convert to fraction form
    13,154.21/19,731.28 = 10,836.39/x
  3. Step 3: Cross multiply
    13,154.21x = 19,731.28 × 10,836.39
  4. Step 4: Simplify right side
    13,154.21x = 213,815,845.28
  5. Step 5: Solve for x
    x = 213,815,845.28/13,154.21
  6. Step 6: Final answer
    x = 16,254.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.