Home / 13,240.23-18,273.75-7,575.22

Finding the Fourth Proportional to 13,240.23, 18,273.75 and 7,575.22

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Solution

The fourth proportional to 13,240.23, 18,273.75 and 7,575.22 is: 10,455.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.23 : 18,273.75 = 7,575.22 : x
  2. Step 2: Convert to fraction form
    13,240.23/18,273.75 = 7,575.22/x
  3. Step 3: Cross multiply
    13,240.23x = 18,273.75 × 7,575.22
  4. Step 4: Simplify right side
    13,240.23x = 138,427,713.52
  5. Step 5: Solve for x
    x = 138,427,713.52/13,240.23
  6. Step 6: Final answer
    x = 10,455.08

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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.