Home / 12,459.80-18,684.84-5,704.40

Finding the Fourth Proportional to 12,459.80, 18,684.84 and 5,704.40

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Solution

The fourth proportional to 12,459.80, 18,684.84 and 5,704.40 is: 8,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.80 : 18,684.84 = 5,704.40 : x
  2. Step 2: Convert to fraction form
    12,459.80/18,684.84 = 5,704.40/x
  3. Step 3: Cross multiply
    12,459.80x = 18,684.84 × 5,704.40
  4. Step 4: Simplify right side
    12,459.80x = 106,585,801.30
  5. Step 5: Solve for x
    x = 106,585,801.30/12,459.80
  6. Step 6: Final answer
    x = 8,554.37

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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.