Home / 13,448.46-18,556.61-7,479.34

Finding the Fourth Proportional to 13,448.46, 18,556.61 and 7,479.34

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Solution

The fourth proportional to 13,448.46, 18,556.61 and 7,479.34 is: 10,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.46 : 18,556.61 = 7,479.34 : x
  2. Step 2: Convert to fraction form
    13,448.46/18,556.61 = 7,479.34/x
  3. Step 3: Cross multiply
    13,448.46x = 18,556.61 × 7,479.34
  4. Step 4: Simplify right side
    13,448.46x = 138,791,195.44
  5. Step 5: Solve for x
    x = 138,791,195.44/13,448.46
  6. Step 6: Final answer
    x = 10,320.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.