Home / 18,670.28-28,005.76-5,522.64

Finding the Fourth Proportional to 18,670.28, 28,005.76 and 5,522.64

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Solution

The fourth proportional to 18,670.28, 28,005.76 and 5,522.64 is: 8,284.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.28 : 28,005.76 = 5,522.64 : x
  2. Step 2: Convert to fraction form
    18,670.28/28,005.76 = 5,522.64/x
  3. Step 3: Cross multiply
    18,670.28x = 28,005.76 × 5,522.64
  4. Step 4: Simplify right side
    18,670.28x = 154,665,730.41
  5. Step 5: Solve for x
    x = 154,665,730.41/18,670.28
  6. Step 6: Final answer
    x = 8,284.06

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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.