Home / 13,837.86-20,756.25-3,977.10

Finding the Fourth Proportional to 13,837.86, 20,756.25 and 3,977.10

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Solution

The fourth proportional to 13,837.86, 20,756.25 and 3,977.10 is: 5,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.86 : 20,756.25 = 3,977.10 : x
  2. Step 2: Convert to fraction form
    13,837.86/20,756.25 = 3,977.10/x
  3. Step 3: Cross multiply
    13,837.86x = 20,756.25 × 3,977.10
  4. Step 4: Simplify right side
    13,837.86x = 82,549,681.88
  5. Step 5: Solve for x
    x = 82,549,681.88/13,837.86
  6. Step 6: Final answer
    x = 5,965.49

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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.