Home / 10,438.51-15,649.53-5,175.33

Finding the Fourth Proportional to 10,438.51, 15,649.53 and 5,175.33

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Solution

The fourth proportional to 10,438.51, 15,649.53 and 5,175.33 is: 7,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.51 : 15,649.53 = 5,175.33 : x
  2. Step 2: Convert to fraction form
    10,438.51/15,649.53 = 5,175.33/x
  3. Step 3: Cross multiply
    10,438.51x = 15,649.53 × 5,175.33
  4. Step 4: Simplify right side
    10,438.51x = 80,991,456.22
  5. Step 5: Solve for x
    x = 80,991,456.22/10,438.51
  6. Step 6: Final answer
    x = 7,758.91

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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.