Home / 13,761.27-18,990.59-7,473.51

Finding the Fourth Proportional to 13,761.27, 18,990.59 and 7,473.51

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Solution

The fourth proportional to 13,761.27, 18,990.59 and 7,473.51 is: 10,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.27 : 18,990.59 = 7,473.51 : x
  2. Step 2: Convert to fraction form
    13,761.27/18,990.59 = 7,473.51/x
  3. Step 3: Cross multiply
    13,761.27x = 18,990.59 × 7,473.51
  4. Step 4: Simplify right side
    13,761.27x = 141,926,326.90
  5. Step 5: Solve for x
    x = 141,926,326.90/13,761.27
  6. Step 6: Final answer
    x = 10,313.46

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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.