Home / 13,055.85-18,016.45-7,087.46

Finding the Fourth Proportional to 13,055.85, 18,016.45 and 7,087.46

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Solution

The fourth proportional to 13,055.85, 18,016.45 and 7,087.46 is: 9,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.85 : 18,016.45 = 7,087.46 : x
  2. Step 2: Convert to fraction form
    13,055.85/18,016.45 = 7,087.46/x
  3. Step 3: Cross multiply
    13,055.85x = 18,016.45 × 7,087.46
  4. Step 4: Simplify right side
    13,055.85x = 127,690,760.92
  5. Step 5: Solve for x
    x = 127,690,760.92/13,055.85
  6. Step 6: Final answer
    x = 9,780.35

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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.