Home / 13,140.95-19,711.62-4,375.87

Finding the Fourth Proportional to 13,140.95, 19,711.62 and 4,375.87

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Solution

The fourth proportional to 13,140.95, 19,711.62 and 4,375.87 is: 6,563.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.95 : 19,711.62 = 4,375.87 : x
  2. Step 2: Convert to fraction form
    13,140.95/19,711.62 = 4,375.87/x
  3. Step 3: Cross multiply
    13,140.95x = 19,711.62 × 4,375.87
  4. Step 4: Simplify right side
    13,140.95x = 86,255,437.33
  5. Step 5: Solve for x
    x = 86,255,437.33/13,140.95
  6. Step 6: Final answer
    x = 6,563.87

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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.