Home / 13,091.76-19,638.72-4,324.32

Finding the Fourth Proportional to 13,091.76, 19,638.72 and 4,324.32

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Solution

The fourth proportional to 13,091.76, 19,638.72 and 4,324.32 is: 6,486.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.76 : 19,638.72 = 4,324.32 : x
  2. Step 2: Convert to fraction form
    13,091.76/19,638.72 = 4,324.32/x
  3. Step 3: Cross multiply
    13,091.76x = 19,638.72 × 4,324.32
  4. Step 4: Simplify right side
    13,091.76x = 84,924,109.67
  5. Step 5: Solve for x
    x = 84,924,109.67/13,091.76
  6. Step 6: Final answer
    x = 6,486.84

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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.