Home / 15,228.24-21,014.89-8,513.82

Finding the Fourth Proportional to 15,228.24, 21,014.89 and 8,513.82

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Solution

The fourth proportional to 15,228.24, 21,014.89 and 8,513.82 is: 11,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.24 : 21,014.89 = 8,513.82 : x
  2. Step 2: Convert to fraction form
    15,228.24/21,014.89 = 8,513.82/x
  3. Step 3: Cross multiply
    15,228.24x = 21,014.89 × 8,513.82
  4. Step 4: Simplify right side
    15,228.24x = 178,916,990.78
  5. Step 5: Solve for x
    x = 178,916,990.78/15,228.24
  6. Step 6: Final answer
    x = 11,749.03

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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.