Home / 13,289.27-19,946.25-6,720.17

Finding the Fourth Proportional to 13,289.27, 19,946.25 and 6,720.17

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Solution

The fourth proportional to 13,289.27, 19,946.25 and 6,720.17 is: 10,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.27 : 19,946.25 = 6,720.17 : x
  2. Step 2: Convert to fraction form
    13,289.27/19,946.25 = 6,720.17/x
  3. Step 3: Cross multiply
    13,289.27x = 19,946.25 × 6,720.17
  4. Step 4: Simplify right side
    13,289.27x = 134,042,091.13
  5. Step 5: Solve for x
    x = 134,042,091.13/13,289.27
  6. Step 6: Final answer
    x = 10,086.49

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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.