Home / 13,250.96-18,278.70-8,274.32

Finding the Fourth Proportional to 13,250.96, 18,278.70 and 8,274.32

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Solution

The fourth proportional to 13,250.96, 18,278.70 and 8,274.32 is: 11,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.96 : 18,278.70 = 8,274.32 : x
  2. Step 2: Convert to fraction form
    13,250.96/18,278.70 = 8,274.32/x
  3. Step 3: Cross multiply
    13,250.96x = 18,278.70 × 8,274.32
  4. Step 4: Simplify right side
    13,250.96x = 151,243,721.59
  5. Step 5: Solve for x
    x = 151,243,721.59/13,250.96
  6. Step 6: Final answer
    x = 11,413.80

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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.