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Finding the Fourth Proportional to 9,475.20, 14,212.80 and 9,410.40

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Solution

The fourth proportional to 9,475.20, 14,212.80 and 9,410.40 is: 14,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,475.20 : 14,212.80 = 9,410.40 : x
  2. Step 2: Convert to fraction form
    9,475.20/14,212.80 = 9,410.40/x
  3. Step 3: Cross multiply
    9,475.20x = 14,212.80 × 9,410.40
  4. Step 4: Simplify right side
    9,475.20x = 133,748,133.12
  5. Step 5: Solve for x
    x = 133,748,133.12/9,475.20
  6. Step 6: Final answer
    x = 14,115.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.