Home / 10,895.40-16,310.70-7,201.80

Finding the Fourth Proportional to 10,895.40, 16,310.70 and 7,201.80

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Solution

The fourth proportional to 10,895.40, 16,310.70 and 7,201.80 is: 10,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,895.40 : 16,310.70 = 7,201.80 : x
  2. Step 2: Convert to fraction form
    10,895.40/16,310.70 = 7,201.80/x
  3. Step 3: Cross multiply
    10,895.40x = 16,310.70 × 7,201.80
  4. Step 4: Simplify right side
    10,895.40x = 117,466,399.26
  5. Step 5: Solve for x
    x = 117,466,399.26/10,895.40
  6. Step 6: Final answer
    x = 10,781.28

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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.