Home / 14,817.90-20,456.14-11,453.11

Finding the Fourth Proportional to 14,817.90, 20,456.14 and 11,453.11

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Solution

The fourth proportional to 14,817.90, 20,456.14 and 11,453.11 is: 15,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,817.90 : 20,456.14 = 11,453.11 : x
  2. Step 2: Convert to fraction form
    14,817.90/20,456.14 = 11,453.11/x
  3. Step 3: Cross multiply
    14,817.90x = 20,456.14 × 11,453.11
  4. Step 4: Simplify right side
    14,817.90x = 234,286,421.60
  5. Step 5: Solve for x
    x = 234,286,421.60/14,817.90
  6. Step 6: Final answer
    x = 15,811.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.