Home / 13,165.12-18,167.16-7,195.60

Finding the Fourth Proportional to 13,165.12, 18,167.16 and 7,195.60

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Solution

The fourth proportional to 13,165.12, 18,167.16 and 7,195.60 is: 9,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.12 : 18,167.16 = 7,195.60 : x
  2. Step 2: Convert to fraction form
    13,165.12/18,167.16 = 7,195.60/x
  3. Step 3: Cross multiply
    13,165.12x = 18,167.16 × 7,195.60
  4. Step 4: Simplify right side
    13,165.12x = 130,723,616.50
  5. Step 5: Solve for x
    x = 130,723,616.50/13,165.12
  6. Step 6: Final answer
    x = 9,929.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.