Home / 18,880.76-26,074.32-15,556.52

Finding the Fourth Proportional to 18,880.76, 26,074.32 and 15,556.52

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Solution

The fourth proportional to 18,880.76, 26,074.32 and 15,556.52 is: 21,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.76 : 26,074.32 = 15,556.52 : x
  2. Step 2: Convert to fraction form
    18,880.76/26,074.32 = 15,556.52/x
  3. Step 3: Cross multiply
    18,880.76x = 26,074.32 × 15,556.52
  4. Step 4: Simplify right side
    18,880.76x = 405,625,680.57
  5. Step 5: Solve for x
    x = 405,625,680.57/18,880.76
  6. Step 6: Final answer
    x = 21,483.55

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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.