Home / 13,187.48-18,198.93-7,219.04

Finding the Fourth Proportional to 13,187.48, 18,198.93 and 7,219.04

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Solution

The fourth proportional to 13,187.48, 18,198.93 and 7,219.04 is: 9,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.48 : 18,198.93 = 7,219.04 : x
  2. Step 2: Convert to fraction form
    13,187.48/18,198.93 = 7,219.04/x
  3. Step 3: Cross multiply
    13,187.48x = 18,198.93 × 7,219.04
  4. Step 4: Simplify right side
    13,187.48x = 131,378,849.12
  5. Step 5: Solve for x
    x = 131,378,849.12/13,187.48
  6. Step 6: Final answer
    x = 9,962.40

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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.