Home / 14,209.34-21,288.99-12,663.08

Finding the Fourth Proportional to 14,209.34, 21,288.99 and 12,663.08

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Solution

The fourth proportional to 14,209.34, 21,288.99 and 12,663.08 is: 18,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,209.34 : 21,288.99 = 12,663.08 : x
  2. Step 2: Convert to fraction form
    14,209.34/21,288.99 = 12,663.08/x
  3. Step 3: Cross multiply
    14,209.34x = 21,288.99 × 12,663.08
  4. Step 4: Simplify right side
    14,209.34x = 269,584,183.49
  5. Step 5: Solve for x
    x = 269,584,183.49/14,209.34
  6. Step 6: Final answer
    x = 18,972.32

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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.