Home / 13,124.74-18,112.44-7,458.60

Finding the Fourth Proportional to 13,124.74, 18,112.44 and 7,458.60

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Solution

The fourth proportional to 13,124.74, 18,112.44 and 7,458.60 is: 10,293.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.74 : 18,112.44 = 7,458.60 : x
  2. Step 2: Convert to fraction form
    13,124.74/18,112.44 = 7,458.60/x
  3. Step 3: Cross multiply
    13,124.74x = 18,112.44 × 7,458.60
  4. Step 4: Simplify right side
    13,124.74x = 135,093,354.42
  5. Step 5: Solve for x
    x = 135,093,354.42/13,124.74
  6. Step 6: Final answer
    x = 10,293.03

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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.