Home / 15,775.36-23,644.64-11,867.20

Finding the Fourth Proportional to 15,775.36, 23,644.64 and 11,867.20

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Solution

The fourth proportional to 15,775.36, 23,644.64 and 11,867.20 is: 17,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.36 : 23,644.64 = 11,867.20 : x
  2. Step 2: Convert to fraction form
    15,775.36/23,644.64 = 11,867.20/x
  3. Step 3: Cross multiply
    15,775.36x = 23,644.64 × 11,867.20
  4. Step 4: Simplify right side
    15,775.36x = 280,595,671.81
  5. Step 5: Solve for x
    x = 280,595,671.81/15,775.36
  6. Step 6: Final answer
    x = 17,786.96

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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.