Home / 13,528.67-18,634.86-9,542.79

Finding the Fourth Proportional to 13,528.67, 18,634.86 and 9,542.79

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Solution

The fourth proportional to 13,528.67, 18,634.86 and 9,542.79 is: 13,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.67 : 18,634.86 = 9,542.79 : x
  2. Step 2: Convert to fraction form
    13,528.67/18,634.86 = 9,542.79/x
  3. Step 3: Cross multiply
    13,528.67x = 18,634.86 × 9,542.79
  4. Step 4: Simplify right side
    13,528.67x = 177,828,555.66
  5. Step 5: Solve for x
    x = 177,828,555.66/13,528.67
  6. Step 6: Final answer
    x = 13,144.58

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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.