Home / 10,912.94-15,059.15-6,435.67

Finding the Fourth Proportional to 10,912.94, 15,059.15 and 6,435.67

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Solution

The fourth proportional to 10,912.94, 15,059.15 and 6,435.67 is: 8,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.94 : 15,059.15 = 6,435.67 : x
  2. Step 2: Convert to fraction form
    10,912.94/15,059.15 = 6,435.67/x
  3. Step 3: Cross multiply
    10,912.94x = 15,059.15 × 6,435.67
  4. Step 4: Simplify right side
    10,912.94x = 96,915,612.41
  5. Step 5: Solve for x
    x = 96,915,612.41/10,912.94
  6. Step 6: Final answer
    x = 8,880.80

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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.