Home / 13,423.87-18,525.41-7,455.64

Finding the Fourth Proportional to 13,423.87, 18,525.41 and 7,455.64

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Solution

The fourth proportional to 13,423.87, 18,525.41 and 7,455.64 is: 10,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.87 : 18,525.41 = 7,455.64 : x
  2. Step 2: Convert to fraction form
    13,423.87/18,525.41 = 7,455.64/x
  3. Step 3: Cross multiply
    13,423.87x = 18,525.41 × 7,455.64
  4. Step 4: Simplify right side
    13,423.87x = 138,118,704.22
  5. Step 5: Solve for x
    x = 138,118,704.22/13,423.87
  6. Step 6: Final answer
    x = 10,289.04

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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.