Home / 13,670.79-20,505.41-4,310.60

Finding the Fourth Proportional to 13,670.79, 20,505.41 and 4,310.60

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Solution

The fourth proportional to 13,670.79, 20,505.41 and 4,310.60 is: 6,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.79 : 20,505.41 = 4,310.60 : x
  2. Step 2: Convert to fraction form
    13,670.79/20,505.41 = 4,310.60/x
  3. Step 3: Cross multiply
    13,670.79x = 20,505.41 × 4,310.60
  4. Step 4: Simplify right side
    13,670.79x = 88,390,639.90
  5. Step 5: Solve for x
    x = 88,390,639.90/13,670.79
  6. Step 6: Final answer
    x = 6,465.66

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1.5x scale

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.