Home / 12,231.12-18,343.75-5,650.99

Finding the Fourth Proportional to 12,231.12, 18,343.75 and 5,650.99

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Solution

The fourth proportional to 12,231.12, 18,343.75 and 5,650.99 is: 8,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.12 : 18,343.75 = 5,650.99 : x
  2. Step 2: Convert to fraction form
    12,231.12/18,343.75 = 5,650.99/x
  3. Step 3: Cross multiply
    12,231.12x = 18,343.75 × 5,650.99
  4. Step 4: Simplify right side
    12,231.12x = 103,660,347.81
  5. Step 5: Solve for x
    x = 103,660,347.81/12,231.12
  6. Step 6: Final answer
    x = 8,475.13

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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.