Home / 13,120.14-19,677.30-3,760.14

Finding the Fourth Proportional to 13,120.14, 19,677.30 and 3,760.14

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Solution

The fourth proportional to 13,120.14, 19,677.30 and 3,760.14 is: 5,639.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.14 : 19,677.30 = 3,760.14 : x
  2. Step 2: Convert to fraction form
    13,120.14/19,677.30 = 3,760.14/x
  3. Step 3: Cross multiply
    13,120.14x = 19,677.30 × 3,760.14
  4. Step 4: Simplify right side
    13,120.14x = 73,989,402.82
  5. Step 5: Solve for x
    x = 73,989,402.82/13,120.14
  6. Step 6: Final answer
    x = 5,639.38

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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.