Home / 13,609.44-20,374.80-7,970.04

Finding the Fourth Proportional to 13,609.44, 20,374.80 and 7,970.04

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Solution

The fourth proportional to 13,609.44, 20,374.80 and 7,970.04 is: 11,932.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.44 : 20,374.80 = 7,970.04 : x
  2. Step 2: Convert to fraction form
    13,609.44/20,374.80 = 7,970.04/x
  3. Step 3: Cross multiply
    13,609.44x = 20,374.80 × 7,970.04
  4. Step 4: Simplify right side
    13,609.44x = 162,387,970.99
  5. Step 5: Solve for x
    x = 162,387,970.99/13,609.44
  6. Step 6: Final answer
    x = 11,932.01

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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.