Home / 13,564.20-20,346.30-11,377.20

Finding the Fourth Proportional to 13,564.20, 20,346.30 and 11,377.20

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Solution

The fourth proportional to 13,564.20, 20,346.30 and 11,377.20 is: 17,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.20 : 20,346.30 = 11,377.20 : x
  2. Step 2: Convert to fraction form
    13,564.20/20,346.30 = 11,377.20/x
  3. Step 3: Cross multiply
    13,564.20x = 20,346.30 × 11,377.20
  4. Step 4: Simplify right side
    13,564.20x = 231,483,924.36
  5. Step 5: Solve for x
    x = 231,483,924.36/13,564.20
  6. Step 6: Final answer
    x = 17,065.80

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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.