Home / 12,528.87-18,791.27-3,762.24

Finding the Fourth Proportional to 12,528.87, 18,791.27 and 3,762.24

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Solution

The fourth proportional to 12,528.87, 18,791.27 and 3,762.24 is: 5,642.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.87 : 18,791.27 = 3,762.24 : x
  2. Step 2: Convert to fraction form
    12,528.87/18,791.27 = 3,762.24/x
  3. Step 3: Cross multiply
    12,528.87x = 18,791.27 × 3,762.24
  4. Step 4: Simplify right side
    12,528.87x = 70,697,267.64
  5. Step 5: Solve for x
    x = 70,697,267.64/12,528.87
  6. Step 6: Final answer
    x = 5,642.75

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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.