Home / 13,123.63-19,682.74-3,761.56

Finding the Fourth Proportional to 13,123.63, 19,682.74 and 3,761.56

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Solution

The fourth proportional to 13,123.63, 19,682.74 and 3,761.56 is: 5,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.63 : 19,682.74 = 3,761.56 : x
  2. Step 2: Convert to fraction form
    13,123.63/19,682.74 = 3,761.56/x
  3. Step 3: Cross multiply
    13,123.63x = 19,682.74 × 3,761.56
  4. Step 4: Simplify right side
    13,123.63x = 74,037,842.08
  5. Step 5: Solve for x
    x = 74,037,842.08/13,123.63
  6. Step 6: Final answer
    x = 5,641.57

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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.