Home / 13,048.40-19,568.64-3,687.68

Finding the Fourth Proportional to 13,048.40, 19,568.64 and 3,687.68

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Solution

The fourth proportional to 13,048.40, 19,568.64 and 3,687.68 is: 5,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.40 : 19,568.64 = 3,687.68 : x
  2. Step 2: Convert to fraction form
    13,048.40/19,568.64 = 3,687.68/x
  3. Step 3: Cross multiply
    13,048.40x = 19,568.64 × 3,687.68
  4. Step 4: Simplify right side
    13,048.40x = 72,162,882.36
  5. Step 5: Solve for x
    x = 72,162,882.36/13,048.40
  6. Step 6: Final answer
    x = 5,530.40

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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.