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Finding the Fourth Proportional to 14,815.60, 22,226.60 and 4,428.40

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Solution

The fourth proportional to 14,815.60, 22,226.60 and 4,428.40 is: 6,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.60 : 22,226.60 = 4,428.40 : x
  2. Step 2: Convert to fraction form
    14,815.60/22,226.60 = 4,428.40/x
  3. Step 3: Cross multiply
    14,815.60x = 22,226.60 × 4,428.40
  4. Step 4: Simplify right side
    14,815.60x = 98,428,275.44
  5. Step 5: Solve for x
    x = 98,428,275.44/14,815.60
  6. Step 6: Final answer
    x = 6,643.56

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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.