Home / 13,175.07-18,171.14-9,955.64

Finding the Fourth Proportional to 13,175.07, 18,171.14 and 9,955.64

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Solution

The fourth proportional to 13,175.07, 18,171.14 and 9,955.64 is: 13,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.07 : 18,171.14 = 9,955.64 : x
  2. Step 2: Convert to fraction form
    13,175.07/18,171.14 = 9,955.64/x
  3. Step 3: Cross multiply
    13,175.07x = 18,171.14 × 9,955.64
  4. Step 4: Simplify right side
    13,175.07x = 180,905,187.60
  5. Step 5: Solve for x
    x = 180,905,187.60/13,175.07
  6. Step 6: Final answer
    x = 13,730.87

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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.