Home / 13,564.05-20,328.75-11,801.69

Finding the Fourth Proportional to 13,564.05, 20,328.75 and 11,801.69

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Solution

The fourth proportional to 13,564.05, 20,328.75 and 11,801.69 is: 17,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.05 : 20,328.75 = 11,801.69 : x
  2. Step 2: Convert to fraction form
    13,564.05/20,328.75 = 11,801.69/x
  3. Step 3: Cross multiply
    13,564.05x = 20,328.75 × 11,801.69
  4. Step 4: Simplify right side
    13,564.05x = 239,913,605.59
  5. Step 5: Solve for x
    x = 239,913,605.59/13,564.05
  6. Step 6: Final answer
    x = 17,687.46

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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.