Home / 5,509.87-8,265.33-1,812.13

Finding the Fourth Proportional to 5,509.87, 8,265.33 and 1,812.13

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Solution

The fourth proportional to 5,509.87, 8,265.33 and 1,812.13 is: 2,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.87 : 8,265.33 = 1,812.13 : x
  2. Step 2: Convert to fraction form
    5,509.87/8,265.33 = 1,812.13/x
  3. Step 3: Cross multiply
    5,509.87x = 8,265.33 × 1,812.13
  4. Step 4: Simplify right side
    5,509.87x = 14,977,852.45
  5. Step 5: Solve for x
    x = 14,977,852.45/5,509.87
  6. Step 6: Final answer
    x = 2,718.37

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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.