Home / 18,336.33-25,299.80-10,378.55

Finding the Fourth Proportional to 18,336.33, 25,299.80 and 10,378.55

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Solution

The fourth proportional to 18,336.33, 25,299.80 and 10,378.55 is: 14,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.33 : 25,299.80 = 10,378.55 : x
  2. Step 2: Convert to fraction form
    18,336.33/25,299.80 = 10,378.55/x
  3. Step 3: Cross multiply
    18,336.33x = 25,299.80 × 10,378.55
  4. Step 4: Simplify right side
    18,336.33x = 262,575,060.90
  5. Step 5: Solve for x
    x = 262,575,060.90/18,336.33
  6. Step 6: Final answer
    x = 14,319.94

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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.