Home / 13,055.67-18,016.85-7,087.35

Finding the Fourth Proportional to 13,055.67, 18,016.85 and 7,087.35

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Solution

The fourth proportional to 13,055.67, 18,016.85 and 7,087.35 is: 9,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.67 : 18,016.85 = 7,087.35 : x
  2. Step 2: Convert to fraction form
    13,055.67/18,016.85 = 7,087.35/x
  3. Step 3: Cross multiply
    13,055.67x = 18,016.85 × 7,087.35
  4. Step 4: Simplify right side
    13,055.67x = 127,691,721.85
  5. Step 5: Solve for x
    x = 127,691,721.85/13,055.67
  6. Step 6: Final answer
    x = 9,780.56

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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.