Home / 13,807.14-20,707.23-3,946.47

Finding the Fourth Proportional to 13,807.14, 20,707.23 and 3,946.47

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Solution

The fourth proportional to 13,807.14, 20,707.23 and 3,946.47 is: 5,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.14 : 20,707.23 = 3,946.47 : x
  2. Step 2: Convert to fraction form
    13,807.14/20,707.23 = 3,946.47/x
  3. Step 3: Cross multiply
    13,807.14x = 20,707.23 × 3,946.47
  4. Step 4: Simplify right side
    13,807.14x = 81,720,461.98
  5. Step 5: Solve for x
    x = 81,720,461.98/13,807.14
  6. Step 6: Final answer
    x = 5,918.71

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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.