Home / 13,484.25-20,230.37-6,915.05

Finding the Fourth Proportional to 13,484.25, 20,230.37 and 6,915.05

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Solution

The fourth proportional to 13,484.25, 20,230.37 and 6,915.05 is: 10,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.25 : 20,230.37 = 6,915.05 : x
  2. Step 2: Convert to fraction form
    13,484.25/20,230.37 = 6,915.05/x
  3. Step 3: Cross multiply
    13,484.25x = 20,230.37 × 6,915.05
  4. Step 4: Simplify right side
    13,484.25x = 139,893,884.34
  5. Step 5: Solve for x
    x = 139,893,884.34/13,484.25
  6. Step 6: Final answer
    x = 10,374.61

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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.