Home / 13,257.76-19,888.56-4,026.40

Finding the Fourth Proportional to 13,257.76, 19,888.56 and 4,026.40

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Solution

The fourth proportional to 13,257.76, 19,888.56 and 4,026.40 is: 6,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.76 : 19,888.56 = 4,026.40 : x
  2. Step 2: Convert to fraction form
    13,257.76/19,888.56 = 4,026.40/x
  3. Step 3: Cross multiply
    13,257.76x = 19,888.56 × 4,026.40
  4. Step 4: Simplify right side
    13,257.76x = 80,079,297.98
  5. Step 5: Solve for x
    x = 80,079,297.98/13,257.76
  6. Step 6: Final answer
    x = 6,040.18

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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.