Home / 18,835.69-25,991.46-11,281.89

Finding the Fourth Proportional to 18,835.69, 25,991.46 and 11,281.89

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Solution

The fourth proportional to 18,835.69, 25,991.46 and 11,281.89 is: 15,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.69 : 25,991.46 = 11,281.89 : x
  2. Step 2: Convert to fraction form
    18,835.69/25,991.46 = 11,281.89/x
  3. Step 3: Cross multiply
    18,835.69x = 25,991.46 × 11,281.89
  4. Step 4: Simplify right side
    18,835.69x = 293,232,792.66
  5. Step 5: Solve for x
    x = 293,232,792.66/18,835.69
  6. Step 6: Final answer
    x = 15,567.93

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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.