Home / 12,365.02-17,063.78-6,699.78

Finding the Fourth Proportional to 12,365.02, 17,063.78 and 6,699.78

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Solution

The fourth proportional to 12,365.02, 17,063.78 and 6,699.78 is: 9,245.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.02 : 17,063.78 = 6,699.78 : x
  2. Step 2: Convert to fraction form
    12,365.02/17,063.78 = 6,699.78/x
  3. Step 3: Cross multiply
    12,365.02x = 17,063.78 × 6,699.78
  4. Step 4: Simplify right side
    12,365.02x = 114,323,571.97
  5. Step 5: Solve for x
    x = 114,323,571.97/12,365.02
  6. Step 6: Final answer
    x = 9,245.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.