Home / 18,983.35-26,172.61-15,567.83

Finding the Fourth Proportional to 18,983.35, 26,172.61 and 15,567.83

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Solution

The fourth proportional to 18,983.35, 26,172.61 and 15,567.83 is: 21,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.35 : 26,172.61 = 15,567.83 : x
  2. Step 2: Convert to fraction form
    18,983.35/26,172.61 = 15,567.83/x
  3. Step 3: Cross multiply
    18,983.35x = 26,172.61 × 15,567.83
  4. Step 4: Simplify right side
    18,983.35x = 407,450,743.14
  5. Step 5: Solve for x
    x = 407,450,743.14/18,983.35
  6. Step 6: Final answer
    x = 21,463.58

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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.