Home / 10,853.81-16,281.34-4,190.34

Finding the Fourth Proportional to 10,853.81, 16,281.34 and 4,190.34

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Solution

The fourth proportional to 10,853.81, 16,281.34 and 4,190.34 is: 6,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.81 : 16,281.34 = 4,190.34 : x
  2. Step 2: Convert to fraction form
    10,853.81/16,281.34 = 4,190.34/x
  3. Step 3: Cross multiply
    10,853.81x = 16,281.34 × 4,190.34
  4. Step 4: Simplify right side
    10,853.81x = 68,224,350.26
  5. Step 5: Solve for x
    x = 68,224,350.26/10,853.81
  6. Step 6: Final answer
    x = 6,285.75

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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.