Home / 11,513.90-15,899.15-10,923.41

Finding the Fourth Proportional to 11,513.90, 15,899.15 and 10,923.41

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Solution

The fourth proportional to 11,513.90, 15,899.15 and 10,923.41 is: 15,083.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.90 : 15,899.15 = 10,923.41 : x
  2. Step 2: Convert to fraction form
    11,513.90/15,899.15 = 10,923.41/x
  3. Step 3: Cross multiply
    11,513.90x = 15,899.15 × 10,923.41
  4. Step 4: Simplify right side
    11,513.90x = 173,672,934.10
  5. Step 5: Solve for x
    x = 173,672,934.10/11,513.90
  6. Step 6: Final answer
    x = 15,083.76

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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.