Home / 13,209.16-19,814.82-5,418.04

Finding the Fourth Proportional to 13,209.16, 19,814.82 and 5,418.04

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Solution

The fourth proportional to 13,209.16, 19,814.82 and 5,418.04 is: 8,127.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.16 : 19,814.82 = 5,418.04 : x
  2. Step 2: Convert to fraction form
    13,209.16/19,814.82 = 5,418.04/x
  3. Step 3: Cross multiply
    13,209.16x = 19,814.82 × 5,418.04
  4. Step 4: Simplify right side
    13,209.16x = 107,357,487.35
  5. Step 5: Solve for x
    x = 107,357,487.35/13,209.16
  6. Step 6: Final answer
    x = 8,127.50

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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.