Home / 13,182.48-18,192.20-7,214.54

Finding the Fourth Proportional to 13,182.48, 18,192.20 and 7,214.54

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Solution

The fourth proportional to 13,182.48, 18,192.20 and 7,214.54 is: 9,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.48 : 18,192.20 = 7,214.54 : x
  2. Step 2: Convert to fraction form
    13,182.48/18,192.20 = 7,214.54/x
  3. Step 3: Cross multiply
    13,182.48x = 18,192.20 × 7,214.54
  4. Step 4: Simplify right side
    13,182.48x = 131,248,227.55
  5. Step 5: Solve for x
    x = 131,248,227.55/13,182.48
  6. Step 6: Final answer
    x = 9,956.26

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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.