Home / 13,271.95-19,912.45-8,335.81

Finding the Fourth Proportional to 13,271.95, 19,912.45 and 8,335.81

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Solution

The fourth proportional to 13,271.95, 19,912.45 and 8,335.81 is: 12,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.95 : 19,912.45 = 8,335.81 : x
  2. Step 2: Convert to fraction form
    13,271.95/19,912.45 = 8,335.81/x
  3. Step 3: Cross multiply
    13,271.95x = 19,912.45 × 8,335.81
  4. Step 4: Simplify right side
    13,271.95x = 165,986,329.21
  5. Step 5: Solve for x
    x = 165,986,329.21/13,271.95
  6. Step 6: Final answer
    x = 12,506.55

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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.