Home / 13,688.92-20,496.30-7,101.31

Finding the Fourth Proportional to 13,688.92, 20,496.30 and 7,101.31

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Solution

The fourth proportional to 13,688.92, 20,496.30 and 7,101.31 is: 10,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.92 : 20,496.30 = 7,101.31 : x
  2. Step 2: Convert to fraction form
    13,688.92/20,496.30 = 7,101.31/x
  3. Step 3: Cross multiply
    13,688.92x = 20,496.30 × 7,101.31
  4. Step 4: Simplify right side
    13,688.92x = 145,550,580.15
  5. Step 5: Solve for x
    x = 145,550,580.15/13,688.92
  6. Step 6: Final answer
    x = 10,632.73

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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.