Home / 12,014.40-18,021.60-9,246.40

Finding the Fourth Proportional to 12,014.40, 18,021.60 and 9,246.40

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Solution

The fourth proportional to 12,014.40, 18,021.60 and 9,246.40 is: 13,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.40 : 18,021.60 = 9,246.40 : x
  2. Step 2: Convert to fraction form
    12,014.40/18,021.60 = 9,246.40/x
  3. Step 3: Cross multiply
    12,014.40x = 18,021.60 × 9,246.40
  4. Step 4: Simplify right side
    12,014.40x = 166,634,922.24
  5. Step 5: Solve for x
    x = 166,634,922.24/12,014.40
  6. Step 6: Final answer
    x = 13,869.60

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Similar ratio
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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.