Home / 13,863.69-19,135.29-7,898.88

Finding the Fourth Proportional to 13,863.69, 19,135.29 and 7,898.88

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Solution

The fourth proportional to 13,863.69, 19,135.29 and 7,898.88 is: 10,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.69 : 19,135.29 = 7,898.88 : x
  2. Step 2: Convert to fraction form
    13,863.69/19,135.29 = 7,898.88/x
  3. Step 3: Cross multiply
    13,863.69x = 19,135.29 × 7,898.88
  4. Step 4: Simplify right side
    13,863.69x = 151,147,460.85
  5. Step 5: Solve for x
    x = 151,147,460.85/13,863.69
  6. Step 6: Final answer
    x = 10,902.40

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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.