Home / 10,570.14-15,854.81-2,778.75

Finding the Fourth Proportional to 10,570.14, 15,854.81 and 2,778.75

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Solution

The fourth proportional to 10,570.14, 15,854.81 and 2,778.75 is: 4,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,570.14 : 15,854.81 = 2,778.75 : x
  2. Step 2: Convert to fraction form
    10,570.14/15,854.81 = 2,778.75/x
  3. Step 3: Cross multiply
    10,570.14x = 15,854.81 × 2,778.75
  4. Step 4: Simplify right side
    10,570.14x = 44,056,539.39
  5. Step 5: Solve for x
    x = 44,056,539.39/10,570.14
  6. Step 6: Final answer
    x = 4,168.02

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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.