Home / 13,071.11-18,035.21-7,405.36

Finding the Fourth Proportional to 13,071.11, 18,035.21 and 7,405.36

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Solution

The fourth proportional to 13,071.11, 18,035.21 and 7,405.36 is: 10,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.11 : 18,035.21 = 7,405.36 : x
  2. Step 2: Convert to fraction form
    13,071.11/18,035.21 = 7,405.36/x
  3. Step 3: Cross multiply
    13,071.11x = 18,035.21 × 7,405.36
  4. Step 4: Simplify right side
    13,071.11x = 133,557,196.15
  5. Step 5: Solve for x
    x = 133,557,196.15/13,071.11
  6. Step 6: Final answer
    x = 10,217.74

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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.