Home / 13,986.84-20,977.21-4,624.64

Finding the Fourth Proportional to 13,986.84, 20,977.21 and 4,624.64

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Solution

The fourth proportional to 13,986.84, 20,977.21 and 4,624.64 is: 6,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.84 : 20,977.21 = 4,624.64 : x
  2. Step 2: Convert to fraction form
    13,986.84/20,977.21 = 4,624.64/x
  3. Step 3: Cross multiply
    13,986.84x = 20,977.21 × 4,624.64
  4. Step 4: Simplify right side
    13,986.84x = 97,012,085.34
  5. Step 5: Solve for x
    x = 97,012,085.34/13,986.84
  6. Step 6: Final answer
    x = 6,935.95

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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.