Home / 11,326.34-15,629.82-6,290.89

Finding the Fourth Proportional to 11,326.34, 15,629.82 and 6,290.89

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Solution

The fourth proportional to 11,326.34, 15,629.82 and 6,290.89 is: 8,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.34 : 15,629.82 = 6,290.89 : x
  2. Step 2: Convert to fraction form
    11,326.34/15,629.82 = 6,290.89/x
  3. Step 3: Cross multiply
    11,326.34x = 15,629.82 × 6,290.89
  4. Step 4: Simplify right side
    11,326.34x = 98,325,478.34
  5. Step 5: Solve for x
    x = 98,325,478.34/11,326.34
  6. Step 6: Final answer
    x = 8,681.13

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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.