Home / 13,385.26-18,471.43-7,335.45

Finding the Fourth Proportional to 13,385.26, 18,471.43 and 7,335.45

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Solution

The fourth proportional to 13,385.26, 18,471.43 and 7,335.45 is: 10,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.26 : 18,471.43 = 7,335.45 : x
  2. Step 2: Convert to fraction form
    13,385.26/18,471.43 = 7,335.45/x
  3. Step 3: Cross multiply
    13,385.26x = 18,471.43 × 7,335.45
  4. Step 4: Simplify right side
    13,385.26x = 135,496,260.36
  5. Step 5: Solve for x
    x = 135,496,260.36/13,385.26
  6. Step 6: Final answer
    x = 10,122.80

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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.