Home / 13,161.24-19,735.47-6,139.62

Finding the Fourth Proportional to 13,161.24, 19,735.47 and 6,139.62

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Solution

The fourth proportional to 13,161.24, 19,735.47 and 6,139.62 is: 9,206.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.24 : 19,735.47 = 6,139.62 : x
  2. Step 2: Convert to fraction form
    13,161.24/19,735.47 = 6,139.62/x
  3. Step 3: Cross multiply
    13,161.24x = 19,735.47 × 6,139.62
  4. Step 4: Simplify right side
    13,161.24x = 121,168,286.32
  5. Step 5: Solve for x
    x = 121,168,286.32/13,161.24
  6. Step 6: Final answer
    x = 9,206.45

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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.