Home / 15,513.78-23,256.90-5,651.22

Finding the Fourth Proportional to 15,513.78, 23,256.90 and 5,651.22

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Solution

The fourth proportional to 15,513.78, 23,256.90 and 5,651.22 is: 8,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,513.78 : 23,256.90 = 5,651.22 : x
  2. Step 2: Convert to fraction form
    15,513.78/23,256.90 = 5,651.22/x
  3. Step 3: Cross multiply
    15,513.78x = 23,256.90 × 5,651.22
  4. Step 4: Simplify right side
    15,513.78x = 131,429,858.42
  5. Step 5: Solve for x
    x = 131,429,858.42/15,513.78
  6. Step 6: Final answer
    x = 8,471.81

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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.