Home / 15,365.33-21,204.56-8,651.20

Finding the Fourth Proportional to 15,365.33, 21,204.56 and 8,651.20

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Solution

The fourth proportional to 15,365.33, 21,204.56 and 8,651.20 is: 11,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.33 : 21,204.56 = 8,651.20 : x
  2. Step 2: Convert to fraction form
    15,365.33/21,204.56 = 8,651.20/x
  3. Step 3: Cross multiply
    15,365.33x = 21,204.56 × 8,651.20
  4. Step 4: Simplify right side
    15,365.33x = 183,444,777.38
  5. Step 5: Solve for x
    x = 183,444,777.38/15,365.33
  6. Step 6: Final answer
    x = 11,938.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.