Home / 12,614.12-18,914.56-3,728.28

Finding the Fourth Proportional to 12,614.12, 18,914.56 and 3,728.28

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Solution

The fourth proportional to 12,614.12, 18,914.56 and 3,728.28 is: 5,590.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614.12 : 18,914.56 = 3,728.28 : x
  2. Step 2: Convert to fraction form
    12,614.12/18,914.56 = 3,728.28/x
  3. Step 3: Cross multiply
    12,614.12x = 18,914.56 × 3,728.28
  4. Step 4: Simplify right side
    12,614.12x = 70,518,775.76
  5. Step 5: Solve for x
    x = 70,518,775.76/12,614.12
  6. Step 6: Final answer
    x = 5,590.46

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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.