Home / 13,465.35-20,195.33-5,139.63

Finding the Fourth Proportional to 13,465.35, 20,195.33 and 5,139.63

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Solution

The fourth proportional to 13,465.35, 20,195.33 and 5,139.63 is: 7,708.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.35 : 20,195.33 = 5,139.63 : x
  2. Step 2: Convert to fraction form
    13,465.35/20,195.33 = 5,139.63/x
  3. Step 3: Cross multiply
    13,465.35x = 20,195.33 × 5,139.63
  4. Step 4: Simplify right side
    13,465.35x = 103,796,498.23
  5. Step 5: Solve for x
    x = 103,796,498.23/13,465.35
  6. Step 6: Final answer
    x = 7,708.41

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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.