Home / 16,918.85-25,378.88-5,072.76

Finding the Fourth Proportional to 16,918.85, 25,378.88 and 5,072.76

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Solution

The fourth proportional to 16,918.85, 25,378.88 and 5,072.76 is: 7,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.85 : 25,378.88 = 5,072.76 : x
  2. Step 2: Convert to fraction form
    16,918.85/25,378.88 = 5,072.76/x
  3. Step 3: Cross multiply
    16,918.85x = 25,378.88 × 5,072.76
  4. Step 4: Simplify right side
    16,918.85x = 128,740,941.95
  5. Step 5: Solve for x
    x = 128,740,941.95/16,918.85
  6. Step 6: Final answer
    x = 7,609.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.