Home / 13,182.48-18,191.72-7,214.04

Finding the Fourth Proportional to 13,182.48, 18,191.72 and 7,214.04

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Solution

The fourth proportional to 13,182.48, 18,191.72 and 7,214.04 is: 9,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.48 : 18,191.72 = 7,214.04 : x
  2. Step 2: Convert to fraction form
    13,182.48/18,191.72 = 7,214.04/x
  3. Step 3: Cross multiply
    13,182.48x = 18,191.72 × 7,214.04
  4. Step 4: Simplify right side
    13,182.48x = 131,235,795.75
  5. Step 5: Solve for x
    x = 131,235,795.75/13,182.48
  6. Step 6: Final answer
    x = 9,955.32

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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.