Home / 15,338.24-21,137.28-10,914.56

Finding the Fourth Proportional to 15,338.24, 21,137.28 and 10,914.56

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Solution

The fourth proportional to 15,338.24, 21,137.28 and 10,914.56 is: 15,041.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.24 : 21,137.28 = 10,914.56 : x
  2. Step 2: Convert to fraction form
    15,338.24/21,137.28 = 10,914.56/x
  3. Step 3: Cross multiply
    15,338.24x = 21,137.28 × 10,914.56
  4. Step 4: Simplify right side
    15,338.24x = 230,704,110.80
  5. Step 5: Solve for x
    x = 230,704,110.80/15,338.24
  6. Step 6: Final answer
    x = 15,041.11

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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.