Home / 10,765.68-16,145.40-4,190.40

Finding the Fourth Proportional to 10,765.68, 16,145.40 and 4,190.40

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Solution

The fourth proportional to 10,765.68, 16,145.40 and 4,190.40 is: 6,284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.68 : 16,145.40 = 4,190.40 : x
  2. Step 2: Convert to fraction form
    10,765.68/16,145.40 = 4,190.40/x
  3. Step 3: Cross multiply
    10,765.68x = 16,145.40 × 4,190.40
  4. Step 4: Simplify right side
    10,765.68x = 67,655,684.16
  5. Step 5: Solve for x
    x = 67,655,684.16/10,765.68
  6. Step 6: Final answer
    x = 6,284.39

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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.