Home / 13,330.25-18,397.37-7,741.25

Finding the Fourth Proportional to 13,330.25, 18,397.37 and 7,741.25

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Solution

The fourth proportional to 13,330.25, 18,397.37 and 7,741.25 is: 10,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.25 : 18,397.37 = 7,741.25 : x
  2. Step 2: Convert to fraction form
    13,330.25/18,397.37 = 7,741.25/x
  3. Step 3: Cross multiply
    13,330.25x = 18,397.37 × 7,741.25
  4. Step 4: Simplify right side
    13,330.25x = 142,418,640.51
  5. Step 5: Solve for x
    x = 142,418,640.51/13,330.25
  6. Step 6: Final answer
    x = 10,683.87

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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.