Home / 10,153.86-15,231.20-3,133.25

Finding the Fourth Proportional to 10,153.86, 15,231.20 and 3,133.25

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Solution

The fourth proportional to 10,153.86, 15,231.20 and 3,133.25 is: 4,700.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.86 : 15,231.20 = 3,133.25 : x
  2. Step 2: Convert to fraction form
    10,153.86/15,231.20 = 3,133.25/x
  3. Step 3: Cross multiply
    10,153.86x = 15,231.20 × 3,133.25
  4. Step 4: Simplify right side
    10,153.86x = 47,723,179.81
  5. Step 5: Solve for x
    x = 47,723,179.81/10,153.86
  6. Step 6: Final answer
    x = 4,700.00

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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.