Home / 8,857.10-13,305.45-7,399.10

Finding the Fourth Proportional to 8,857.10, 13,305.45 and 7,399.10

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Solution

The fourth proportional to 8,857.10, 13,305.45 and 7,399.10 is: 11,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.10 : 13,305.45 = 7,399.10 : x
  2. Step 2: Convert to fraction form
    8,857.10/13,305.45 = 7,399.10/x
  3. Step 3: Cross multiply
    8,857.10x = 13,305.45 × 7,399.10
  4. Step 4: Simplify right side
    8,857.10x = 98,448,355.10
  5. Step 5: Solve for x
    x = 98,448,355.10/8,857.10
  6. Step 6: Final answer
    x = 11,115.19

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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.