Home / 13,331.52-18,396.60-7,363.20

Finding the Fourth Proportional to 13,331.52, 18,396.60 and 7,363.20

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Solution

The fourth proportional to 13,331.52, 18,396.60 and 7,363.20 is: 10,160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.52 : 18,396.60 = 7,363.20 : x
  2. Step 2: Convert to fraction form
    13,331.52/18,396.60 = 7,363.20/x
  3. Step 3: Cross multiply
    13,331.52x = 18,396.60 × 7,363.20
  4. Step 4: Simplify right side
    13,331.52x = 135,457,845.12
  5. Step 5: Solve for x
    x = 135,457,845.12/13,331.52
  6. Step 6: Final answer
    x = 10,160.72

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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.