Home / 12,231.60-18,325.80-10,028.40

Finding the Fourth Proportional to 12,231.60, 18,325.80 and 10,028.40

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Solution

The fourth proportional to 12,231.60, 18,325.80 and 10,028.40 is: 15,024.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.60 : 18,325.80 = 10,028.40 : x
  2. Step 2: Convert to fraction form
    12,231.60/18,325.80 = 10,028.40/x
  3. Step 3: Cross multiply
    12,231.60x = 18,325.80 × 10,028.40
  4. Step 4: Simplify right side
    12,231.60x = 183,778,452.72
  5. Step 5: Solve for x
    x = 183,778,452.72/12,231.60
  6. Step 6: Final answer
    x = 15,024.89

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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.