Home / 10,382.55-15,571.53-2,985.36

Finding the Fourth Proportional to 10,382.55, 15,571.53 and 2,985.36

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Solution

The fourth proportional to 10,382.55, 15,571.53 and 2,985.36 is: 4,477.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.55 : 15,571.53 = 2,985.36 : x
  2. Step 2: Convert to fraction form
    10,382.55/15,571.53 = 2,985.36/x
  3. Step 3: Cross multiply
    10,382.55x = 15,571.53 × 2,985.36
  4. Step 4: Simplify right side
    10,382.55x = 46,486,622.80
  5. Step 5: Solve for x
    x = 46,486,622.80/10,382.55
  6. Step 6: Final answer
    x = 4,477.38

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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.