Home / 10,745.19-16,117.13-6,390.36

Finding the Fourth Proportional to 10,745.19, 16,117.13 and 6,390.36

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Solution

The fourth proportional to 10,745.19, 16,117.13 and 6,390.36 is: 9,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,745.19 : 16,117.13 = 6,390.36 : x
  2. Step 2: Convert to fraction form
    10,745.19/16,117.13 = 6,390.36/x
  3. Step 3: Cross multiply
    10,745.19x = 16,117.13 × 6,390.36
  4. Step 4: Simplify right side
    10,745.19x = 102,994,262.87
  5. Step 5: Solve for x
    x = 102,994,262.87/10,745.19
  6. Step 6: Final answer
    x = 9,585.15

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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.