Home / 12,145.00-18,217.50-4,744.27

Finding the Fourth Proportional to 12,145.00, 18,217.50 and 4,744.27

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Solution

The fourth proportional to 12,145.00, 18,217.50 and 4,744.27 is: 7,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.00 : 18,217.50 = 4,744.27 : x
  2. Step 2: Convert to fraction form
    12,145.00/18,217.50 = 4,744.27/x
  3. Step 3: Cross multiply
    12,145.00x = 18,217.50 × 4,744.27
  4. Step 4: Simplify right side
    12,145.00x = 86,428,684.29
  5. Step 5: Solve for x
    x = 86,428,684.29/12,145.00
  6. Step 6: Final answer
    x = 7,116.40

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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.