Home / 13,156.21-19,734.28-10,838.39

Finding the Fourth Proportional to 13,156.21, 19,734.28 and 10,838.39

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Solution

The fourth proportional to 13,156.21, 19,734.28 and 10,838.39 is: 16,257.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.21 : 19,734.28 = 10,838.39 : x
  2. Step 2: Convert to fraction form
    13,156.21/19,734.28 = 10,838.39/x
  3. Step 3: Cross multiply
    13,156.21x = 19,734.28 × 10,838.39
  4. Step 4: Simplify right side
    13,156.21x = 213,887,823.01
  5. Step 5: Solve for x
    x = 213,887,823.01/13,156.21
  6. Step 6: Final answer
    x = 16,257.56

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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.