Home / 10,438.16-15,647.44-3,507.80

Finding the Fourth Proportional to 10,438.16, 15,647.44 and 3,507.80

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Solution

The fourth proportional to 10,438.16, 15,647.44 and 3,507.80 is: 5,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.16 : 15,647.44 = 3,507.80 : x
  2. Step 2: Convert to fraction form
    10,438.16/15,647.44 = 3,507.80/x
  3. Step 3: Cross multiply
    10,438.16x = 15,647.44 × 3,507.80
  4. Step 4: Simplify right side
    10,438.16x = 54,888,090.03
  5. Step 5: Solve for x
    x = 54,888,090.03/10,438.16
  6. Step 6: Final answer
    x = 5,258.41

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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.