Home / 11,418.10-17,115.47-6,477.30

Finding the Fourth Proportional to 11,418.10, 17,115.47 and 6,477.30

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Solution

The fourth proportional to 11,418.10, 17,115.47 and 6,477.30 is: 9,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.10 : 17,115.47 = 6,477.30 : x
  2. Step 2: Convert to fraction form
    11,418.10/17,115.47 = 6,477.30/x
  3. Step 3: Cross multiply
    11,418.10x = 17,115.47 × 6,477.30
  4. Step 4: Simplify right side
    11,418.10x = 110,862,050.02
  5. Step 5: Solve for x
    x = 110,862,050.02/11,418.10
  6. Step 6: Final answer
    x = 9,709.33

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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.