Home / 10,453.05-15,679.31-2,555.60

Finding the Fourth Proportional to 10,453.05, 15,679.31 and 2,555.60

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Solution

The fourth proportional to 10,453.05, 15,679.31 and 2,555.60 is: 3,833.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.05 : 15,679.31 = 2,555.60 : x
  2. Step 2: Convert to fraction form
    10,453.05/15,679.31 = 2,555.60/x
  3. Step 3: Cross multiply
    10,453.05x = 15,679.31 × 2,555.60
  4. Step 4: Simplify right side
    10,453.05x = 40,069,953.46
  5. Step 5: Solve for x
    x = 40,069,953.46/10,453.05
  6. Step 6: Final answer
    x = 3,833.33

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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.