Home / 13,278.50-19,918.23-4,512.28

Finding the Fourth Proportional to 13,278.50, 19,918.23 and 4,512.28

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Solution

The fourth proportional to 13,278.50, 19,918.23 and 4,512.28 is: 6,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.50 : 19,918.23 = 4,512.28 : x
  2. Step 2: Convert to fraction form
    13,278.50/19,918.23 = 4,512.28/x
  3. Step 3: Cross multiply
    13,278.50x = 19,918.23 × 4,512.28
  4. Step 4: Simplify right side
    13,278.50x = 89,876,581.07
  5. Step 5: Solve for x
    x = 89,876,581.07/13,278.50
  6. Step 6: Final answer
    x = 6,768.58

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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.