Home / 13,977.11-20,966.43-5,655.89

Finding the Fourth Proportional to 13,977.11, 20,966.43 and 5,655.89

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Solution

The fourth proportional to 13,977.11, 20,966.43 and 5,655.89 is: 8,484.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.11 : 20,966.43 = 5,655.89 : x
  2. Step 2: Convert to fraction form
    13,977.11/20,966.43 = 5,655.89/x
  3. Step 3: Cross multiply
    13,977.11x = 20,966.43 × 5,655.89
  4. Step 4: Simplify right side
    13,977.11x = 118,583,821.77
  5. Step 5: Solve for x
    x = 118,583,821.77/13,977.11
  6. Step 6: Final answer
    x = 8,484.14

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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.