Home / 13,091.40-19,638.36-4,326.84

Finding the Fourth Proportional to 13,091.40, 19,638.36 and 4,326.84

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Solution

The fourth proportional to 13,091.40, 19,638.36 and 4,326.84 is: 6,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.40 : 19,638.36 = 4,326.84 : x
  2. Step 2: Convert to fraction form
    13,091.40/19,638.36 = 4,326.84/x
  3. Step 3: Cross multiply
    13,091.40x = 19,638.36 × 4,326.84
  4. Step 4: Simplify right side
    13,091.40x = 84,972,041.58
  5. Step 5: Solve for x
    x = 84,972,041.58/13,091.40
  6. Step 6: Final answer
    x = 6,490.68

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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.