Home / 10,194.12-15,290.52-2,798.40

Finding the Fourth Proportional to 10,194.12, 15,290.52 and 2,798.40

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Solution

The fourth proportional to 10,194.12, 15,290.52 and 2,798.40 is: 4,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,194.12 : 15,290.52 = 2,798.40 : x
  2. Step 2: Convert to fraction form
    10,194.12/15,290.52 = 2,798.40/x
  3. Step 3: Cross multiply
    10,194.12x = 15,290.52 × 2,798.40
  4. Step 4: Simplify right side
    10,194.12x = 42,788,991.17
  5. Step 5: Solve for x
    x = 42,788,991.17/10,194.12
  6. Step 6: Final answer
    x = 4,197.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.