Home / 13,650.34-18,839.10-8,345.92

Finding the Fourth Proportional to 13,650.34, 18,839.10 and 8,345.92

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Solution

The fourth proportional to 13,650.34, 18,839.10 and 8,345.92 is: 11,518.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.34 : 18,839.10 = 8,345.92 : x
  2. Step 2: Convert to fraction form
    13,650.34/18,839.10 = 8,345.92/x
  3. Step 3: Cross multiply
    13,650.34x = 18,839.10 × 8,345.92
  4. Step 4: Simplify right side
    13,650.34x = 157,229,621.47
  5. Step 5: Solve for x
    x = 157,229,621.47/13,650.34
  6. Step 6: Final answer
    x = 11,518.37

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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.