Home / 13,302.39-18,357.43-7,334.28

Finding the Fourth Proportional to 13,302.39, 18,357.43 and 7,334.28

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Solution

The fourth proportional to 13,302.39, 18,357.43 and 7,334.28 is: 10,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.39 : 18,357.43 = 7,334.28 : x
  2. Step 2: Convert to fraction form
    13,302.39/18,357.43 = 7,334.28/x
  3. Step 3: Cross multiply
    13,302.39x = 18,357.43 × 7,334.28
  4. Step 4: Simplify right side
    13,302.39x = 134,638,531.70
  5. Step 5: Solve for x
    x = 134,638,531.70/13,302.39
  6. Step 6: Final answer
    x = 10,121.38

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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.