Home / 10,195.45-15,291.53-2,798.18

Finding the Fourth Proportional to 10,195.45, 15,291.53 and 2,798.18

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Solution

The fourth proportional to 10,195.45, 15,291.53 and 2,798.18 is: 4,196.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.45 : 15,291.53 = 2,798.18 : x
  2. Step 2: Convert to fraction form
    10,195.45/15,291.53 = 2,798.18/x
  3. Step 3: Cross multiply
    10,195.45x = 15,291.53 × 2,798.18
  4. Step 4: Simplify right side
    10,195.45x = 42,788,362.97
  5. Step 5: Solve for x
    x = 42,788,362.97/10,195.45
  6. Step 6: Final answer
    x = 4,196.81

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1.5x scale

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.