Home / 13,775.31-20,664.33-4,412.97

Finding the Fourth Proportional to 13,775.31, 20,664.33 and 4,412.97

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Solution

The fourth proportional to 13,775.31, 20,664.33 and 4,412.97 is: 6,619.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.31 : 20,664.33 = 4,412.97 : x
  2. Step 2: Convert to fraction form
    13,775.31/20,664.33 = 4,412.97/x
  3. Step 3: Cross multiply
    13,775.31x = 20,664.33 × 4,412.97
  4. Step 4: Simplify right side
    13,775.31x = 91,191,068.36
  5. Step 5: Solve for x
    x = 91,191,068.36/13,775.31
  6. Step 6: Final answer
    x = 6,619.89

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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.