Home / 14,114.10-21,171.15-9,189.30

Finding the Fourth Proportional to 14,114.10, 21,171.15 and 9,189.30

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Solution

The fourth proportional to 14,114.10, 21,171.15 and 9,189.30 is: 13,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.10 : 21,171.15 = 9,189.30 : x
  2. Step 2: Convert to fraction form
    14,114.10/21,171.15 = 9,189.30/x
  3. Step 3: Cross multiply
    14,114.10x = 21,171.15 × 9,189.30
  4. Step 4: Simplify right side
    14,114.10x = 194,548,048.70
  5. Step 5: Solve for x
    x = 194,548,048.70/14,114.10
  6. Step 6: Final answer
    x = 13,783.95

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1.5x scale

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.