Home / 13,531.32-18,673.22-7,942.32

Finding the Fourth Proportional to 13,531.32, 18,673.22 and 7,942.32

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Solution

The fourth proportional to 13,531.32, 18,673.22 and 7,942.32 is: 10,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.32 : 18,673.22 = 7,942.32 : x
  2. Step 2: Convert to fraction form
    13,531.32/18,673.22 = 7,942.32/x
  3. Step 3: Cross multiply
    13,531.32x = 18,673.22 × 7,942.32
  4. Step 4: Simplify right side
    13,531.32x = 148,308,648.96
  5. Step 5: Solve for x
    x = 148,308,648.96/13,531.32
  6. Step 6: Final answer
    x = 10,960.40

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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.