Home / 18,818.98-25,968.78-10,319.74

Finding the Fourth Proportional to 18,818.98, 25,968.78 and 10,319.74

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Solution

The fourth proportional to 18,818.98, 25,968.78 and 10,319.74 is: 14,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.98 : 25,968.78 = 10,319.74 : x
  2. Step 2: Convert to fraction form
    18,818.98/25,968.78 = 10,319.74/x
  3. Step 3: Cross multiply
    18,818.98x = 25,968.78 × 10,319.74
  4. Step 4: Simplify right side
    18,818.98x = 267,991,057.72
  5. Step 5: Solve for x
    x = 267,991,057.72/18,818.98
  6. Step 6: Final answer
    x = 14,240.47

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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.