Home / 12,280.64-18,425.28-4,490.24

Finding the Fourth Proportional to 12,280.64, 18,425.28 and 4,490.24

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Solution

The fourth proportional to 12,280.64, 18,425.28 and 4,490.24 is: 6,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.64 : 18,425.28 = 4,490.24 : x
  2. Step 2: Convert to fraction form
    12,280.64/18,425.28 = 4,490.24/x
  3. Step 3: Cross multiply
    12,280.64x = 18,425.28 × 4,490.24
  4. Step 4: Simplify right side
    12,280.64x = 82,733,929.27
  5. Step 5: Solve for x
    x = 82,733,929.27/12,280.64
  6. Step 6: Final answer
    x = 6,736.94

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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.