Home / 13,348.48-18,424.53-8,309.69

Finding the Fourth Proportional to 13,348.48, 18,424.53 and 8,309.69

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Solution

The fourth proportional to 13,348.48, 18,424.53 and 8,309.69 is: 11,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.48 : 18,424.53 = 8,309.69 : x
  2. Step 2: Convert to fraction form
    13,348.48/18,424.53 = 8,309.69/x
  3. Step 3: Cross multiply
    13,348.48x = 18,424.53 × 8,309.69
  4. Step 4: Simplify right side
    13,348.48x = 153,102,074.61
  5. Step 5: Solve for x
    x = 153,102,074.61/13,348.48
  6. Step 6: Final answer
    x = 11,469.62

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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.