Home / 10,189.55-15,261.75-7,832.20

Finding the Fourth Proportional to 10,189.55, 15,261.75 and 7,832.20

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Solution

The fourth proportional to 10,189.55, 15,261.75 and 7,832.20 is: 11,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.55 : 15,261.75 = 7,832.20 : x
  2. Step 2: Convert to fraction form
    10,189.55/15,261.75 = 7,832.20/x
  3. Step 3: Cross multiply
    10,189.55x = 15,261.75 × 7,832.20
  4. Step 4: Simplify right side
    10,189.55x = 119,533,078.35
  5. Step 5: Solve for x
    x = 119,533,078.35/10,189.55
  6. Step 6: Final answer
    x = 11,730.95

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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.