Home / 11,313.68-15,628.09-8,693.83

Finding the Fourth Proportional to 11,313.68, 15,628.09 and 8,693.83

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Solution

The fourth proportional to 11,313.68, 15,628.09 and 8,693.83 is: 12,009.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.68 : 15,628.09 = 8,693.83 : x
  2. Step 2: Convert to fraction form
    11,313.68/15,628.09 = 8,693.83/x
  3. Step 3: Cross multiply
    11,313.68x = 15,628.09 × 8,693.83
  4. Step 4: Simplify right side
    11,313.68x = 135,867,971.79
  5. Step 5: Solve for x
    x = 135,867,971.79/11,313.68
  6. Step 6: Final answer
    x = 12,009.18

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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.