Home / 10,414.80-15,629.40-7,495.20

Finding the Fourth Proportional to 10,414.80, 15,629.40 and 7,495.20

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Solution

The fourth proportional to 10,414.80, 15,629.40 and 7,495.20 is: 11,247.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,414.80 : 15,629.40 = 7,495.20 : x
  2. Step 2: Convert to fraction form
    10,414.80/15,629.40 = 7,495.20/x
  3. Step 3: Cross multiply
    10,414.80x = 15,629.40 × 7,495.20
  4. Step 4: Simplify right side
    10,414.80x = 117,145,478.88
  5. Step 5: Solve for x
    x = 117,145,478.88/10,414.80
  6. Step 6: Final answer
    x = 11,247.98

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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.