Home / 13,315.37-19,977.22-3,955.43

Finding the Fourth Proportional to 13,315.37, 19,977.22 and 3,955.43

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Solution

The fourth proportional to 13,315.37, 19,977.22 and 3,955.43 is: 5,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.37 : 19,977.22 = 3,955.43 : x
  2. Step 2: Convert to fraction form
    13,315.37/19,977.22 = 3,955.43/x
  3. Step 3: Cross multiply
    13,315.37x = 19,977.22 × 3,955.43
  4. Step 4: Simplify right side
    13,315.37x = 79,018,495.30
  5. Step 5: Solve for x
    x = 79,018,495.30/13,315.37
  6. Step 6: Final answer
    x = 5,934.38

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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.