Home / 8,436.72-11,645.96-7,550.99

Finding the Fourth Proportional to 8,436.72, 11,645.96 and 7,550.99

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Solution

The fourth proportional to 8,436.72, 11,645.96 and 7,550.99 is: 10,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.72 : 11,645.96 = 7,550.99 : x
  2. Step 2: Convert to fraction form
    8,436.72/11,645.96 = 7,550.99/x
  3. Step 3: Cross multiply
    8,436.72x = 11,645.96 × 7,550.99
  4. Step 4: Simplify right side
    8,436.72x = 87,938,431.52
  5. Step 5: Solve for x
    x = 87,938,431.52/8,436.72
  6. Step 6: Final answer
    x = 10,423.30

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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.