Home / 13,484.34-20,232.83-6,915.15

Finding the Fourth Proportional to 13,484.34, 20,232.83 and 6,915.15

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Solution

The fourth proportional to 13,484.34, 20,232.83 and 6,915.15 is: 10,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.34 : 20,232.83 = 6,915.15 : x
  2. Step 2: Convert to fraction form
    13,484.34/20,232.83 = 6,915.15/x
  3. Step 3: Cross multiply
    13,484.34x = 20,232.83 × 6,915.15
  4. Step 4: Simplify right side
    13,484.34x = 139,913,071.66
  5. Step 5: Solve for x
    x = 139,913,071.66/13,484.34
  6. Step 6: Final answer
    x = 10,375.97

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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.