Home / 10,181.95-15,272.88-2,786.20

Finding the Fourth Proportional to 10,181.95, 15,272.88 and 2,786.20

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Solution

The fourth proportional to 10,181.95, 15,272.88 and 2,786.20 is: 4,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.95 : 15,272.88 = 2,786.20 : x
  2. Step 2: Convert to fraction form
    10,181.95/15,272.88 = 2,786.20/x
  3. Step 3: Cross multiply
    10,181.95x = 15,272.88 × 2,786.20
  4. Step 4: Simplify right side
    10,181.95x = 42,553,298.26
  5. Step 5: Solve for x
    x = 42,553,298.26/10,181.95
  6. Step 6: Final answer
    x = 4,179.29

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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.