Home / 15,750.28-21,735.57-8,676.82

Finding the Fourth Proportional to 15,750.28, 21,735.57 and 8,676.82

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Solution

The fourth proportional to 15,750.28, 21,735.57 and 8,676.82 is: 11,974.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.28 : 21,735.57 = 8,676.82 : x
  2. Step 2: Convert to fraction form
    15,750.28/21,735.57 = 8,676.82/x
  3. Step 3: Cross multiply
    15,750.28x = 21,735.57 × 8,676.82
  4. Step 4: Simplify right side
    15,750.28x = 188,595,628.49
  5. Step 5: Solve for x
    x = 188,595,628.49/15,750.28
  6. Step 6: Final answer
    x = 11,974.11

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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.