Home / 13,253.20-18,290.58-7,286.02

Finding the Fourth Proportional to 13,253.20, 18,290.58 and 7,286.02

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Solution

The fourth proportional to 13,253.20, 18,290.58 and 7,286.02 is: 10,055.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.20 : 18,290.58 = 7,286.02 : x
  2. Step 2: Convert to fraction form
    13,253.20/18,290.58 = 7,286.02/x
  3. Step 3: Cross multiply
    13,253.20x = 18,290.58 × 7,286.02
  4. Step 4: Simplify right side
    13,253.20x = 133,265,531.69
  5. Step 5: Solve for x
    x = 133,265,531.69/13,253.20
  6. Step 6: Final answer
    x = 10,055.35

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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.