Home / 13,212.04-18,232.40-7,243.60

Finding the Fourth Proportional to 13,212.04, 18,232.40 and 7,243.60

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Solution

The fourth proportional to 13,212.04, 18,232.40 and 7,243.60 is: 9,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.04 : 18,232.40 = 7,243.60 : x
  2. Step 2: Convert to fraction form
    13,212.04/18,232.40 = 7,243.60/x
  3. Step 3: Cross multiply
    13,212.04x = 18,232.40 × 7,243.60
  4. Step 4: Simplify right side
    13,212.04x = 132,068,212.64
  5. Step 5: Solve for x
    x = 132,068,212.64/13,212.04
  6. Step 6: Final answer
    x = 9,996.05

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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.