Home / 10,925.40-16,388.10-6,243.60

Finding the Fourth Proportional to 10,925.40, 16,388.10 and 6,243.60

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Solution

The fourth proportional to 10,925.40, 16,388.10 and 6,243.60 is: 9,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,925.40 : 16,388.10 = 6,243.60 : x
  2. Step 2: Convert to fraction form
    10,925.40/16,388.10 = 6,243.60/x
  3. Step 3: Cross multiply
    10,925.40x = 16,388.10 × 6,243.60
  4. Step 4: Simplify right side
    10,925.40x = 102,320,741.16
  5. Step 5: Solve for x
    x = 102,320,741.16/10,925.40
  6. Step 6: Final answer
    x = 9,365.40

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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.