Home / 13,953.43-19,255.24-7,579.79

Finding the Fourth Proportional to 13,953.43, 19,255.24 and 7,579.79

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Solution

The fourth proportional to 13,953.43, 19,255.24 and 7,579.79 is: 10,459.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.43 : 19,255.24 = 7,579.79 : x
  2. Step 2: Convert to fraction form
    13,953.43/19,255.24 = 7,579.79/x
  3. Step 3: Cross multiply
    13,953.43x = 19,255.24 × 7,579.79
  4. Step 4: Simplify right side
    13,953.43x = 145,950,675.60
  5. Step 5: Solve for x
    x = 145,950,675.60/13,953.43
  6. Step 6: Final answer
    x = 10,459.84

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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.