Home / 8,436.69-11,638.65-5,453.46

Finding the Fourth Proportional to 8,436.69, 11,638.65 and 5,453.46

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Solution

The fourth proportional to 8,436.69, 11,638.65 and 5,453.46 is: 7,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.69 : 11,638.65 = 5,453.46 : x
  2. Step 2: Convert to fraction form
    8,436.69/11,638.65 = 5,453.46/x
  3. Step 3: Cross multiply
    8,436.69x = 11,638.65 × 5,453.46
  4. Step 4: Simplify right side
    8,436.69x = 63,470,912.23
  5. Step 5: Solve for x
    x = 63,470,912.23/8,436.69
  6. Step 6: Final answer
    x = 7,523.20

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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.