Home / 13,436.76-18,512.46-10,074.30

Finding the Fourth Proportional to 13,436.76, 18,512.46 and 10,074.30

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Solution

The fourth proportional to 13,436.76, 18,512.46 and 10,074.30 is: 13,879.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.76 : 18,512.46 = 10,074.30 : x
  2. Step 2: Convert to fraction form
    13,436.76/18,512.46 = 10,074.30/x
  3. Step 3: Cross multiply
    13,436.76x = 18,512.46 × 10,074.30
  4. Step 4: Simplify right side
    13,436.76x = 186,500,075.78
  5. Step 5: Solve for x
    x = 186,500,075.78/13,436.76
  6. Step 6: Final answer
    x = 13,879.84

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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.