Home / 13,113.29-19,662.35-8,958.32

Finding the Fourth Proportional to 13,113.29, 19,662.35 and 8,958.32

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Solution

The fourth proportional to 13,113.29, 19,662.35 and 8,958.32 is: 13,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.29 : 19,662.35 = 8,958.32 : x
  2. Step 2: Convert to fraction form
    13,113.29/19,662.35 = 8,958.32/x
  3. Step 3: Cross multiply
    13,113.29x = 19,662.35 × 8,958.32
  4. Step 4: Simplify right side
    13,113.29x = 176,141,609.18
  5. Step 5: Solve for x
    x = 176,141,609.18/13,113.29
  6. Step 6: Final answer
    x = 13,432.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.