Home / 13,708.08-18,917.06-7,741.71

Finding the Fourth Proportional to 13,708.08, 18,917.06 and 7,741.71

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Solution

The fourth proportional to 13,708.08, 18,917.06 and 7,741.71 is: 10,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.08 : 18,917.06 = 7,741.71 : x
  2. Step 2: Convert to fraction form
    13,708.08/18,917.06 = 7,741.71/x
  3. Step 3: Cross multiply
    13,708.08x = 18,917.06 × 7,741.71
  4. Step 4: Simplify right side
    13,708.08x = 146,450,353.86
  5. Step 5: Solve for x
    x = 146,450,353.86/13,708.08
  6. Step 6: Final answer
    x = 10,683.51

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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.