Home / 8,224.48-12,309.72-7,436.80

Finding the Fourth Proportional to 8,224.48, 12,309.72 and 7,436.80

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Solution

The fourth proportional to 8,224.48, 12,309.72 and 7,436.80 is: 11,130.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,224.48 : 12,309.72 = 7,436.80 : x
  2. Step 2: Convert to fraction form
    8,224.48/12,309.72 = 7,436.80/x
  3. Step 3: Cross multiply
    8,224.48x = 12,309.72 × 7,436.80
  4. Step 4: Simplify right side
    8,224.48x = 91,544,925.70
  5. Step 5: Solve for x
    x = 91,544,925.70/8,224.48
  6. Step 6: Final answer
    x = 11,130.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.