Home / 10,636.40-15,954.59-4,389.54

Finding the Fourth Proportional to 10,636.40, 15,954.59 and 4,389.54

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Solution

The fourth proportional to 10,636.40, 15,954.59 and 4,389.54 is: 6,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.40 : 15,954.59 = 4,389.54 : x
  2. Step 2: Convert to fraction form
    10,636.40/15,954.59 = 4,389.54/x
  3. Step 3: Cross multiply
    10,636.40x = 15,954.59 × 4,389.54
  4. Step 4: Simplify right side
    10,636.40x = 70,033,310.99
  5. Step 5: Solve for x
    x = 70,033,310.99/10,636.40
  6. Step 6: Final answer
    x = 6,584.31

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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.