Home / 10,866.46-16,300.90-3,939.34

Finding the Fourth Proportional to 10,866.46, 16,300.90 and 3,939.34

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Solution

The fourth proportional to 10,866.46, 16,300.90 and 3,939.34 is: 5,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.46 : 16,300.90 = 3,939.34 : x
  2. Step 2: Convert to fraction form
    10,866.46/16,300.90 = 3,939.34/x
  3. Step 3: Cross multiply
    10,866.46x = 16,300.90 × 3,939.34
  4. Step 4: Simplify right side
    10,866.46x = 64,214,787.41
  5. Step 5: Solve for x
    x = 64,214,787.41/10,866.46
  6. Step 6: Final answer
    x = 5,909.45

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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.