Home / 13,156.70-19,734.15-4,271.90

Finding the Fourth Proportional to 13,156.70, 19,734.15 and 4,271.90

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Solution

The fourth proportional to 13,156.70, 19,734.15 and 4,271.90 is: 6,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.70 : 19,734.15 = 4,271.90 : x
  2. Step 2: Convert to fraction form
    13,156.70/19,734.15 = 4,271.90/x
  3. Step 3: Cross multiply
    13,156.70x = 19,734.15 × 4,271.90
  4. Step 4: Simplify right side
    13,156.70x = 84,302,315.39
  5. Step 5: Solve for x
    x = 84,302,315.39/13,156.70
  6. Step 6: Final answer
    x = 6,407.56

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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.