Home / 13,240.93-18,272.48-7,272.60

Finding the Fourth Proportional to 13,240.93, 18,272.48 and 7,272.60

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Solution

The fourth proportional to 13,240.93, 18,272.48 and 7,272.60 is: 10,036.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.93 : 18,272.48 = 7,272.60 : x
  2. Step 2: Convert to fraction form
    13,240.93/18,272.48 = 7,272.60/x
  3. Step 3: Cross multiply
    13,240.93x = 18,272.48 × 7,272.60
  4. Step 4: Simplify right side
    13,240.93x = 132,888,438.05
  5. Step 5: Solve for x
    x = 132,888,438.05/13,240.93
  6. Step 6: Final answer
    x = 10,036.19

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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.