Home / 18,835.56-25,991.30-11,281.75

Finding the Fourth Proportional to 18,835.56, 25,991.30 and 11,281.75

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Solution

The fourth proportional to 18,835.56, 25,991.30 and 11,281.75 is: 15,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.56 : 25,991.30 = 11,281.75 : x
  2. Step 2: Convert to fraction form
    18,835.56/25,991.30 = 11,281.75/x
  3. Step 3: Cross multiply
    18,835.56x = 25,991.30 × 11,281.75
  4. Step 4: Simplify right side
    18,835.56x = 293,227,312.00
  5. Step 5: Solve for x
    x = 293,227,312.00/18,835.56
  6. Step 6: Final answer
    x = 15,567.75

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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.