Home / 13,985.10-20,977.62-4,124.48

Finding the Fourth Proportional to 13,985.10, 20,977.62 and 4,124.48

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Solution

The fourth proportional to 13,985.10, 20,977.62 and 4,124.48 is: 6,186.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.10 : 20,977.62 = 4,124.48 : x
  2. Step 2: Convert to fraction form
    13,985.10/20,977.62 = 4,124.48/x
  3. Step 3: Cross multiply
    13,985.10x = 20,977.62 × 4,124.48
  4. Step 4: Simplify right side
    13,985.10x = 86,521,774.14
  5. Step 5: Solve for x
    x = 86,521,774.14/13,985.10
  6. Step 6: Final answer
    x = 6,186.71

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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.