Home / 13,235.22-18,264.89-7,570.48

Finding the Fourth Proportional to 13,235.22, 18,264.89 and 7,570.48

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Solution

The fourth proportional to 13,235.22, 18,264.89 and 7,570.48 is: 10,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.22 : 18,264.89 = 7,570.48 : x
  2. Step 2: Convert to fraction form
    13,235.22/18,264.89 = 7,570.48/x
  3. Step 3: Cross multiply
    13,235.22x = 18,264.89 × 7,570.48
  4. Step 4: Simplify right side
    13,235.22x = 138,273,984.45
  5. Step 5: Solve for x
    x = 138,273,984.45/13,235.22
  6. Step 6: Final answer
    x = 10,447.43

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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.