Home / 11,841.45-16,290.90-11,513.40

Finding the Fourth Proportional to 11,841.45, 16,290.90 and 11,513.40

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Solution

The fourth proportional to 11,841.45, 16,290.90 and 11,513.40 is: 15,839.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,841.45 : 16,290.90 = 11,513.40 : x
  2. Step 2: Convert to fraction form
    11,841.45/16,290.90 = 11,513.40/x
  3. Step 3: Cross multiply
    11,841.45x = 16,290.90 × 11,513.40
  4. Step 4: Simplify right side
    11,841.45x = 187,563,648.06
  5. Step 5: Solve for x
    x = 187,563,648.06/11,841.45
  6. Step 6: Final answer
    x = 15,839.58

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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.