Home / 12,225.87-18,335.10-4,728.09

Finding the Fourth Proportional to 12,225.87, 18,335.10 and 4,728.09

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Solution

The fourth proportional to 12,225.87, 18,335.10 and 4,728.09 is: 7,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.87 : 18,335.10 = 4,728.09 : x
  2. Step 2: Convert to fraction form
    12,225.87/18,335.10 = 4,728.09/x
  3. Step 3: Cross multiply
    12,225.87x = 18,335.10 × 4,728.09
  4. Step 4: Simplify right side
    12,225.87x = 86,690,002.96
  5. Step 5: Solve for x
    x = 86,690,002.96/12,225.87
  6. Step 6: Final answer
    x = 7,090.70

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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.