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Finding the Fourth Proportional to 14,568.60, 21,869.10 and 9,028.20

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Solution

The fourth proportional to 14,568.60, 21,869.10 and 9,028.20 is: 13,552.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,568.60 : 21,869.10 = 9,028.20 : x
  2. Step 2: Convert to fraction form
    14,568.60/21,869.10 = 9,028.20/x
  3. Step 3: Cross multiply
    14,568.60x = 21,869.10 × 9,028.20
  4. Step 4: Simplify right side
    14,568.60x = 197,438,608.62
  5. Step 5: Solve for x
    x = 197,438,608.62/14,568.60
  6. Step 6: Final answer
    x = 13,552.34

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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.