Home / 13,708.98-18,917.91-7,741.53

Finding the Fourth Proportional to 13,708.98, 18,917.91 and 7,741.53

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Solution

The fourth proportional to 13,708.98, 18,917.91 and 7,741.53 is: 10,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.98 : 18,917.91 = 7,741.53 : x
  2. Step 2: Convert to fraction form
    13,708.98/18,917.91 = 7,741.53/x
  3. Step 3: Cross multiply
    13,708.98x = 18,917.91 × 7,741.53
  4. Step 4: Simplify right side
    13,708.98x = 146,453,567.80
  5. Step 5: Solve for x
    x = 146,453,567.80/13,708.98
  6. Step 6: Final answer
    x = 10,683.04

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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.