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Finding the Fourth Proportional to 10,615.60, 15,923.40 and 4,783.60

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Solution

The fourth proportional to 10,615.60, 15,923.40 and 4,783.60 is: 7,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.60 : 15,923.40 = 4,783.60 : x
  2. Step 2: Convert to fraction form
    10,615.60/15,923.40 = 4,783.60/x
  3. Step 3: Cross multiply
    10,615.60x = 15,923.40 × 4,783.60
  4. Step 4: Simplify right side
    10,615.60x = 76,171,176.24
  5. Step 5: Solve for x
    x = 76,171,176.24/10,615.60
  6. Step 6: Final answer
    x = 7,175.40

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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.