Home / 12,528.99-18,797.18-3,765.24

Finding the Fourth Proportional to 12,528.99, 18,797.18 and 3,765.24

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Solution

The fourth proportional to 12,528.99, 18,797.18 and 3,765.24 is: 5,648.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.99 : 18,797.18 = 3,765.24 : x
  2. Step 2: Convert to fraction form
    12,528.99/18,797.18 = 3,765.24/x
  3. Step 3: Cross multiply
    12,528.99x = 18,797.18 × 3,765.24
  4. Step 4: Simplify right side
    12,528.99x = 70,775,875.20
  5. Step 5: Solve for x
    x = 70,775,875.20/12,528.99
  6. Step 6: Final answer
    x = 5,648.97

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Double scale
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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.