Home / 15,896.45-21,940.13-10,518.99

Finding the Fourth Proportional to 15,896.45, 21,940.13 and 10,518.99

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Solution

The fourth proportional to 15,896.45, 21,940.13 and 10,518.99 is: 14,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,896.45 : 21,940.13 = 10,518.99 : x
  2. Step 2: Convert to fraction form
    15,896.45/21,940.13 = 10,518.99/x
  3. Step 3: Cross multiply
    15,896.45x = 21,940.13 × 10,518.99
  4. Step 4: Simplify right side
    15,896.45x = 230,787,955.47
  5. Step 5: Solve for x
    x = 230,787,955.47/15,896.45
  6. Step 6: Final answer
    x = 14,518.21

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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.