Home / 12,320.64-18,484.24-3,556.32

Finding the Fourth Proportional to 12,320.64, 18,484.24 and 3,556.32

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Solution

The fourth proportional to 12,320.64, 18,484.24 and 3,556.32 is: 5,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.64 : 18,484.24 = 3,556.32 : x
  2. Step 2: Convert to fraction form
    12,320.64/18,484.24 = 3,556.32/x
  3. Step 3: Cross multiply
    12,320.64x = 18,484.24 × 3,556.32
  4. Step 4: Simplify right side
    12,320.64x = 65,735,872.40
  5. Step 5: Solve for x
    x = 65,735,872.40/12,320.64
  6. Step 6: Final answer
    x = 5,335.43

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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.