Home / 15,750.48-21,735.72-8,676.84

Finding the Fourth Proportional to 15,750.48, 21,735.72 and 8,676.84

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Solution

The fourth proportional to 15,750.48, 21,735.72 and 8,676.84 is: 11,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.48 : 21,735.72 = 8,676.84 : x
  2. Step 2: Convert to fraction form
    15,750.48/21,735.72 = 8,676.84/x
  3. Step 3: Cross multiply
    15,750.48x = 21,735.72 × 8,676.84
  4. Step 4: Simplify right side
    15,750.48x = 188,597,364.72
  5. Step 5: Solve for x
    x = 188,597,364.72/15,750.48
  6. Step 6: Final answer
    x = 11,974.07

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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.