Home / 13,953.40-19,255.39-7,579.91

Finding the Fourth Proportional to 13,953.40, 19,255.39 and 7,579.91

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Solution

The fourth proportional to 13,953.40, 19,255.39 and 7,579.91 is: 10,460.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.40 : 19,255.39 = 7,579.91 : x
  2. Step 2: Convert to fraction form
    13,953.40/19,255.39 = 7,579.91/x
  3. Step 3: Cross multiply
    13,953.40x = 19,255.39 × 7,579.91
  4. Step 4: Simplify right side
    13,953.40x = 145,954,152.40
  5. Step 5: Solve for x
    x = 145,954,152.40/13,953.40
  6. Step 6: Final answer
    x = 10,460.12

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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.