Home / 10,812.87-16,220.07-3,792.06

Finding the Fourth Proportional to 10,812.87, 16,220.07 and 3,792.06

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Solution

The fourth proportional to 10,812.87, 16,220.07 and 3,792.06 is: 5,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.87 : 16,220.07 = 3,792.06 : x
  2. Step 2: Convert to fraction form
    10,812.87/16,220.07 = 3,792.06/x
  3. Step 3: Cross multiply
    10,812.87x = 16,220.07 × 3,792.06
  4. Step 4: Simplify right side
    10,812.87x = 61,507,478.64
  5. Step 5: Solve for x
    x = 61,507,478.64/10,812.87
  6. Step 6: Final answer
    x = 5,688.36

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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.