Home / 13,329.36-18,394.29-7,360.88

Finding the Fourth Proportional to 13,329.36, 18,394.29 and 7,360.88

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Solution

The fourth proportional to 13,329.36, 18,394.29 and 7,360.88 is: 10,157.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.36 : 18,394.29 = 7,360.88 : x
  2. Step 2: Convert to fraction form
    13,329.36/18,394.29 = 7,360.88/x
  3. Step 3: Cross multiply
    13,329.36x = 18,394.29 × 7,360.88
  4. Step 4: Simplify right side
    13,329.36x = 135,398,069.40
  5. Step 5: Solve for x
    x = 135,398,069.40/13,329.36
  6. Step 6: Final answer
    x = 10,157.88

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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.