Home / 10,515.60-14,505.21-8,274.06

Finding the Fourth Proportional to 10,515.60, 14,505.21 and 8,274.06

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Solution

The fourth proportional to 10,515.60, 14,505.21 and 8,274.06 is: 11,413.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.60 : 14,505.21 = 8,274.06 : x
  2. Step 2: Convert to fraction form
    10,515.60/14,505.21 = 8,274.06/x
  3. Step 3: Cross multiply
    10,515.60x = 14,505.21 × 8,274.06
  4. Step 4: Simplify right side
    10,515.60x = 120,016,977.85
  5. Step 5: Solve for x
    x = 120,016,977.85/10,515.60
  6. Step 6: Final answer
    x = 11,413.23

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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.