Home / 10,649.36-15,974.76-5,103.92

Finding the Fourth Proportional to 10,649.36, 15,974.76 and 5,103.92

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Solution

The fourth proportional to 10,649.36, 15,974.76 and 5,103.92 is: 7,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649.36 : 15,974.76 = 5,103.92 : x
  2. Step 2: Convert to fraction form
    10,649.36/15,974.76 = 5,103.92/x
  3. Step 3: Cross multiply
    10,649.36x = 15,974.76 × 5,103.92
  4. Step 4: Simplify right side
    10,649.36x = 81,533,897.06
  5. Step 5: Solve for x
    x = 81,533,897.06/10,649.36
  6. Step 6: Final answer
    x = 7,656.23

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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.