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Finding the Fourth Proportional to 14,757.60, 20,361.88 and 9,459.60

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Solution

The fourth proportional to 14,757.60, 20,361.88 and 9,459.60 is: 13,051.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,757.60 : 20,361.88 = 9,459.60 : x
  2. Step 2: Convert to fraction form
    14,757.60/20,361.88 = 9,459.60/x
  3. Step 3: Cross multiply
    14,757.60x = 20,361.88 × 9,459.60
  4. Step 4: Simplify right side
    14,757.60x = 192,615,240.05
  5. Step 5: Solve for x
    x = 192,615,240.05/14,757.60
  6. Step 6: Final answer
    x = 13,051.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.