Home / 10,560.40-15,834.60-3,986.80

Finding the Fourth Proportional to 10,560.40, 15,834.60 and 3,986.80

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Solution

The fourth proportional to 10,560.40, 15,834.60 and 3,986.80 is: 5,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,560.40 : 15,834.60 = 3,986.80 : x
  2. Step 2: Convert to fraction form
    10,560.40/15,834.60 = 3,986.80/x
  3. Step 3: Cross multiply
    10,560.40x = 15,834.60 × 3,986.80
  4. Step 4: Simplify right side
    10,560.40x = 63,129,383.28
  5. Step 5: Solve for x
    x = 63,129,383.28/10,560.40
  6. Step 6: Final answer
    x = 5,977.93

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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.